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 2023
Institutional positions in Quantum-Si Inc as of Mar 31, 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
- 100
- −5 vs. Q4 2022
- Shares held
- 43.5M
- −6.21M (−12.5%) vs. Q4 2022
- Total value
- $76.5M
- −$14.4M (−15.9%) vs. Q4 2022
- New holders
- 12
- 27 more added
- Sold out
- 17
- 33 more reduced
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Quantum-Si Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ARK Investment Management LLCSuperinvestorARK Invest | 11,698,791 | $20.6M | 0.14% | −157,393−1.3% | Reduced |
| BlackRock Inc. | 6,083,825 | $10.7M | 0.00% | −377,684−5.8% | Reduced |
| Vanguard Group Inc | 5,123,558 | $9.02M | 0.00% | +176,380+3.6% | Added |
| Glenview Capital Management, LLC | 4,215,990 | $7.42M | 0.18% | −33,966−0.8% | Reduced |
| Foresite Capital Management IV, LLC | 1,771,249 | $3.12M | 1.62% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,728,639 | $3.04M | 0.00% | +33,695+2.0% | Added |
| State Street Corp | 1,660,739 | $2.92M | 0.00% | −106,990−6.1% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,124,702 | $1.98M | 0.00% | −61,418−5.2% | Reduced |
| Nikko Asset Management Americas, Inc. | 1,124,702 | $1.91M | 0.02% | −61,418−5.2% | Reduced |
| Foresite Capital Management V, LLC | 924,404 | $1.63M | 1.20% | +250.0% | Added |
| Fosun International Ltd | 743,935 | $1.31M | 0.12% | 00.0% | Unchanged |
| Northern Trust Corp | 742,477 | $1.31M | 0.00% | −28,530−3.7% | Reduced |
| Security Benefit Life Insurance Co | 715,479 | $1.26M | 0.15% | −3,443,947−82.8% | Reduced |
| Guggenheim Capital LLC | 617,074 | $1.09M | 0.01% | +4,584+0.7% | Added |
| Goldman Sachs Group Inc | 402,358 | $708.1K | 0.00% | −616−0.2% | Reduced |
| Nuveen Asset Management, LLC | 315,598 | $555.0K | 0.00% | −4,705−1.5% | Reduced |
| Bridgeway Capital Management, LLC | 306,700 | $539.8K | 0.01% | +306,700 | New |
| Knollwood Investment Advisory, LLC | 300,000 | $528.0K | 0.18% | +300,000 | New |
| Bank of New York Mellon Corp | 290,930 | $512.0K | 0.00% | −4,724−1.6% | Reduced |
| Morgan Stanley | 263,534 | $463.8K | 0.00% | +118,774+82.0% | Added |
| Charles Schwab Investment Management Inc | 238,228 | $419.3K | 0.00% | 00.0% | Unchanged |
| Clearline Capital LP | 211,900 | $372.9K | 0.06% | 00.0% | Unchanged |
| Neumann Advisory Hong Kong Ltd | 192,857 | $339.0K | 0.15% | −234,774−54.9% | Reduced |
| Invesco Ltd. | 178,938 | $314.9K | 0.00% | +137,569+332.5% | Added |
| Gsa Capital Partners LLP | 167,948 | $296.0K | 0.03% | +151,235+904.9% | Added |
| Rhumbline Advisers | 136,422 | $240.0K | 0.00% | +1,808+1.3% | Added |
| Jane Street Group, LLC | 131,037 | $230.6K | 0.00% | +131,037 | New |
| Bank of America Corp | 125,319 | $220.6K | 0.00% | +13,418+12.0% | Added |
| D.A. Davidson & Co. | 125,000 | $220.0K | 0.00% | +20,000+19.0% | Added |
| General American Investors Co Inc | 119,250 | $209.9K | 0.02% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 112,856 | $199.0K | 0.00% | +75,300+200.5% | Added |
| Susquehanna International Group, LLP | 99,049 | $174.3K | 0.00% | −19,780−16.6% | Reduced |
| Barclays PLC | 76,135 | $134.0K | 0.00% | +21,850+40.3% | Added |
| JPMorgan Chase & Co | 73,897 | $130.0K | 0.00% | +18,244+32.8% | Added |
| Deutsche Bank AG | 67,615 | $119.0K | 0.00% | +29,922+79.4% | Added |
| Westchester Capital Management, LLC | 64,964 | $114.3K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 53,683 | $94.5K | 0.00% | +18,127+51.0% | Added |
| SG Americas Securities, LLC | 51,312 | $90.0K | 0.00% | +17,409+51.3% | Added |
| Price T Rowe Associates Inc | 46,351 | $82.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 45,863 | $80.7K | 0.03% | +33,071+258.5% | Added |
| American International Group, Inc. | 44,084 | $77.6K | 0.00% | +879+2.0% | Added |
| Two Sigma Investments, LP | 43,028 | $75.7K | 0.00% | −3,172−6.9% | Reduced |
| UBS Group AG | 39,631 | $69.8K | 0.00% | +2,463+6.6% | Added |
| Millennium Management LLC | 39,288 | $69.0K | 0.00% | +28,181+253.7% | Added |
| D. E. Shaw & Co., Inc. | 38,452 | $67.7K | 0.00% | −75,062−66.1% | Reduced |
| Manufacturers Life Insurance Company, The | 38,129 | $67.1K | 0.00% | 00.0% | Unchanged |
| Red Wave Investments LLC | 37,000 | $65.1K | 0.03% | 00.0% | Unchanged |
| Raymond James Financial Services Advisors, Inc. | 36,302 | $63.9K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 34,715 | $61.1K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 33,959 | $59.8K | 0.00% | −75,080−68.9% | Reduced |
| Tower Research Capital LLC (TRC) | 33,033 | $58.0K | 0.00% | +15,646+90.0% | Added |
| Principal Financial Group Inc | 31,548 | $55.5K | 0.00% | +2,751+9.6% | Added |
| Alliancebernstein L.P. | 31,500 | $55.4K | 0.00% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 30,900 | $54.4K | 0.00% | −141,876−82.1% | Reduced |
| Wells Fargo & Company | 30,753 | $54.1K | 0.00% | +17,413+130.5% | Added |
| Citadel Advisors LLC | 30,633 | $53.9K | 0.00% | −114,151−78.8% | Reduced |
| Point72 Asset Management, L.P. | 30,467 | $53.6K | 0.00% | +30,467 | New |
| Cambridge Investment Research Advisors, Inc. | 26,917 | $47.0K | 0.00% | −100−0.4% | Reduced |
| New York State Common Retirement Fund | 26,013 | $45.8K | 0.00% | −39,200−60.1% | Reduced |
| Guidance Point Advisors, LLC | 25,742 | $45.3K | 0.02% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 23,999 | $42.2K | 0.00% | +23,999 | New |
| Allspring Global Investments Holdings, LLC | 23,567 | $41.5K | 0.00% | −1,184−4.8% | Reduced |
| Wealth Management Associates, Inc. | 22,000 | $38.7K | 0.02% | +6,200+39.2% | Added |
| Round Rock Advisors, LLC | 21,885 | $38.5K | 0.01% | −3,000−12.1% | Reduced |
| STRS Ohio | 21,300 | $37.0K | 0.00% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 20,576 | $36.2K | 0.00% | +20,576 | New |
| Prelude Capital Management, LLC | 19,347 | $34.1K | 0.00% | +7,213+59.4% | Added |
| ProShare Advisors LLC | 19,062 | $33.5K | 0.00% | −2,606−12.0% | Reduced |
| Dynamic Technology Lab Private Ltd | 14,126 | $25.0K | 0.00% | +14,126 | New |
| Flagship Private Wealth, LLC | 14,158 | $24.9K | 0.02% | 00.0% | Unchanged |
| Procyon Private Wealth Partners, LLC | 13,671 | $24.1K | 0.00% | 00.0% | Unchanged |
| Mutual Advisors, LLC | 13,174 | $23.2K | 0.00% | −135−1.0% | Reduced |
| Asset Management Corp | 11,786 | $20.7K | 0.02% | +11,786 | New |
| FSA Wealth Management LLC | 11,150 | $19.6K | 0.01% | 00.0% | Unchanged |
| Victory Capital Management Inc | 10,611 | $18.7K | 0.00% | +174+1.7% | Added |
| Amalgamated Bank | 9,450 | $17.0K | 0.00% | −2,118−18.3% | Reduced |
| Legal & General Group Plc | 9,294 | $16.3K | 0.00% | −22,523−70.8% | Reduced |
| Leonteq Securities AG | 7,500 | $13.2K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 6,850 | $12.1K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 5,570 | $9.80K | 0.00% | −652−10.5% | Reduced |
| Simplex Trading, LLC | 5,279 | $9.00K | 0.00% | −13,568−72.0% | Reduced |
| Royal Bank of Canada | 5,110 | $9.00K | 0.00% | −5,204−50.5% | Reduced |
| Advisor Group Holdings, Inc. | 3,170 | $5.58K | 0.00% | −400−11.2% | Reduced |
| China Universal Asset Management Co., Ltd. | 1,624 | $2.86K | 0.00% | +406+33.3% | Added |
| Group One Trading, L.P. | 1,554 | $2.73K | 0.00% | +1,554 | New |
| Citigroup Inc | 1,364 | $2.40K | 0.00% | −2,763−66.9% | Reduced |
| FMR LLC | 1,008 | $1.77K | 0.00% | −126−11.1% | Reduced |
| US Bancorp | 800 | $1.41K | 0.00% | 00.0% | Unchanged |
| Johnson Midwest Financial, LLC | 770 | $1.35K | 0.00% | 00.0% | Unchanged |
| First Manhattan Co | 600 | $1.06K | 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 |
| Allworth Financial LP | 500 | $880 | 0.00% | +500 | New |
| GWM Advisors LLC | 492 | $866 | 0.00% | 00.0% | Unchanged |
| Ellevest, Inc. | 391 | $688 | 0.00% | +391 | New |
| Glassman Wealth Services | 335 | $590 | 0.00% | +335 | New |
| Eagle Bay Advisors LLC | 277 | $488 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 250 | $440 | 0.00% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 30 | $0 | 0.00% | 00.0% | Unchanged |
| Cutler Group LP | 17 | $0 | 0.00% | −333−95.1% | Reduced |