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, Q4 2023
Institutional positions in Quantum-Si Inc as of Dec 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
- 91
- −3 vs. Q3 2023
- Shares held
- 56.6M
- +2.06M (+3.8%) vs. Q3 2023
- Total value
- $113.6M
- +$23.1M (+25.6%) vs. Q3 2023
- New holders
- 10
- 27 more added
- Sold out
- 13
- 28 more reduced
2 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Quantum-Si Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FSA Wealth Management LLC | 100 | $0 | 0.00% | −11,050−99.1% | Reduced |
| Nisa Investment Advisors, LLC | 38 | $76 | 0.00% | −6−13.6% | Reduced |
| Federation des caisses Desjardins du Quebec | 50 | $100 | 0.00% | 00.0% | Unchanged |
| Eagle Bay Advisors LLC | 277 | $557 | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 300 | $564 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 407 | $1.00K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 513 | $1.03K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 836 | $1.68K | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 891 | $1.79K | 0.00% | +891 | New |
| Steward Partners Investment Advisory, LLC | 1,000 | $2.01K | 0.00% | 00.0% | Unchanged |
| Archer Investment Corp | 1,399 | $2.81K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 1,628 | $3.27K | 0.00% | −3,942−70.8% | Reduced |
| Level Financial Advisors, Inc. | 2,500 | $5.03K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 4,827 | $9.70K | 0.00% | −549−10.2% | Reduced |
| FMR LLC | 5,288 | $10.6K | 0.00% | −1,459−21.6% | Reduced |
| Amalgamated Bank | 8,507 | $17.0K | 0.00% | −943−10.0% | Reduced |
| Legal & General Group Plc | 9,294 | $18.6K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 9,906 | $19.9K | 0.00% | 00.0% | Unchanged |
| TriaGen Wealth Management LLC | 10,000 | $20.1K | 0.01% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 10,399 | $20.9K | 0.00% | +10,399 | New |
| Leonteq Securities AG | 11,300 | $22.7K | 0.00% | +3,800+50.7% | Added |
| Stratos Wealth Advisors, LLC | 11,810 | $23.7K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 12,214 | $24.6K | 0.00% | −15,571−56.0% | Reduced |
| GWM Advisors LLC | 13,742 | $25.7K | 0.00% | −4,000−22.5% | Reduced |
| Victory Capital Management Inc | 13,384 | $26.9K | 0.00% | +2,544+23.5% | Added |
| Procyon Private Wealth Partners, LLC | 13,671 | $27.5K | 0.00% | 00.0% | Unchanged |
| Round Rock Advisors, LLC | 13,935 | $28.0K | 0.01% | −7,950−36.3% | Reduced |
| Flagship Private Wealth, LLC | 14,158 | $28.5K | 0.02% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 14,300 | $28.7K | 0.00% | −9,444−39.8% | Reduced |
| Citigroup Inc | 15,176 | $30.5K | 0.00% | +13,548+832.2% | Added |
| California State Teachers Retirement System | 16,747 | $33.7K | 0.00% | −5,703−25.4% | Reduced |
| ProShare Advisors LLC | 16,840 | $33.8K | 0.00% | −4,339−20.5% | Reduced |
| DLK Investment Management, LLC | 17,000 | $34.2K | 0.02% | +17,000 | New |
| SG Americas Securities, LLC | 17,341 | $35.0K | 0.00% | −29,225−62.8% | Reduced |
| GTS Securities LLC | 17,476 | $35.1K | 0.00% | +17,476 | New |
| Squarepoint Ops LLC | 17,515 | $35.2K | 0.00% | +17,515 | New |
| Wealth Management Associates, Inc. | 20,100 | $40.4K | 0.02% | +2,200+12.3% | Added |
| STRS Ohio | 21,300 | $42.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 23,400 | $47.0K | 0.00% | +4,000+20.6% | Added |
| Guidance Point Advisors, LLC | 25,742 | $51.7K | 0.02% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 26,087 | $52.4K | 0.00% | −185−0.7% | Reduced |
| State Board of Administration of Florida Retirement System | 29,040 | $58.4K | 0.00% | −6,596−18.5% | Reduced |
| Shay Capital LLC | 29,338 | $59.0K | 0.02% | +9,801+50.2% | Added |
| Raymond James Financial Services Advisors, Inc. | 30,500 | $61.3K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 31,844 | $64.0K | 0.00% | +14,711+85.9% | Added |
| Cambridge Investment Research Advisors, Inc. | 33,355 | $67.0K | 0.00% | +2,750+9.0% | Added |
| Commonwealth Equity Services, LLC | 33,710 | $68.0K | 0.00% | +16,936+101.0% | Added |
| Red Wave Investments LLC | 37,000 | $74.4K | 0.03% | 00.0% | Unchanged |
| Deutsche Bank AG | 42,865 | $86.2K | 0.00% | −4,834−10.1% | Reduced |
| Manufacturers Life Insurance Company, The | 42,874 | $86.2K | 0.00% | −3,852−8.2% | Reduced |
| Principal Financial Group Inc | 43,301 | $87.0K | 0.00% | −4,459−9.3% | Reduced |
| Voya Investment Management LLC | 44,607 | $89.7K | 0.00% | +2,866+6.9% | Added |
| HRT Financial LP | 45,313 | $91.0K | 0.00% | +45,313 | New |
| Wells Fargo & Company | 48,458 | $97.4K | 0.00% | +6,182+14.6% | Added |
| Cookson Peirce & Co Inc | 50,000 | $101.0K | 0.01% | +50,000 | New |
| American International Group, Inc. | 50,573 | $101.7K | 0.00% | −204−0.4% | Reduced |
| MetLife Investment Management | 53,683 | $107.9K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 53,782 | $109.0K | 0.00% | +1,737+3.3% | Added |
| Alliancebernstein L.P. | 55,200 | $111.0K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 69,049 | $138.8K | 0.00% | −23,011−25.0% | Reduced |
| Two Sigma Investments, LP | 75,891 | $152.5K | 0.00% | −6,900−8.3% | Reduced |
| TIG Advisors, LLC | 82,577 | $166.0K | 0.02% | +82,577 | New |
| Tower Research Capital LLC (TRC) | 87,441 | $175.8K | 0.00% | +61,574+238.0% | Added |
| Goldman Sachs Group Inc | 106,078 | $213.2K | 0.00% | −63,236−37.3% | Reduced |
| Susquehanna International Group, LLP | 106,445 | $214.0K | 0.00% | −13,851−11.5% | Reduced |
| UBS Group AG | 111,189 | $223.5K | 0.00% | +50,964+84.6% | Added |
| Pathstone Holdings, LLC | 115,742 | $232.6K | 0.00% | +115,742 | New |
| Citadel Advisors LLC | 125,130 | $251.5K | 0.00% | +125,130 | New |
| Green Alpha Advisors, LLC | 131,785 | $264.9K | 0.19% | +89,163+209.2% | Added |
| Rhumbline Advisers | 140,771 | $282.9K | 0.00% | −2,069−1.4% | Reduced |
| Neumann Advisory Hong Kong Ltd | 166,198 | $334.0K | 0.13% | 00.0% | Unchanged |
| Barclays PLC | 169,608 | $340.9K | 0.00% | +121,670+253.8% | Added |
| Invesco Ltd. | 187,934 | $377.7K | 0.00% | +8,740+4.9% | Added |
| Bank of America Corp | 189,822 | $381.5K | 0.00% | +47,341+33.2% | Added |
| Morgan Stanley | 243,275 | $489.0K | 0.00% | −27,792−10.3% | Reduced |
| Charles Schwab Investment Management Inc | 260,595 | $523.8K | 0.00% | −16,360−5.9% | Reduced |
| Guggenheim Capital LLC | 289,473 | $581.8K | 0.00% | −129,893−31.0% | Reduced |
| Nuveen Asset Management, LLC | 289,535 | $582.0K | 0.00% | +650+0.2% | Added |
| General American Investors Co Inc | 294,350 | $591.6K | 0.05% | +175,100+146.8% | Added |
| Knollwood Investment Advisory, LLC | 300,000 | $603.0K | 0.13% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 342,382 | $688.2K | 0.00% | −4,574−1.3% | Reduced |
| Bridgeway Capital Management, LLC | 406,700 | $817.5K | 0.02% | +50,000+14.0% | Added |
| Fosun International Ltd | 743,935 | $1.50M | 0.30% | 00.0% | Unchanged |
| Northern Trust Corp | 824,387 | $1.66M | 0.00% | +1,625+0.2% | Added |
| Geode Capital Management, LLC | 2,123,452 | $4.27M | 0.00% | +101,858+5.0% | Added |
| State Street Corp | 2,209,837 | $4.44M | 0.00% | +16,419+0.7% | Added |
| Vanguard Group Inc | 5,218,222 | $10.5M | 0.00% | +53,026+1.0% | Added |
| BlackRock Inc. | 7,383,571 | $14.8M | 0.00% | +370,542+5.3% | Added |
| Nikko Asset Management Americas, Inc. | 8,532,917 | $17.1M | 0.16% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 8,532,917 | $17.2M | 0.01% | 00.0% | Unchanged |
| ARK Investment Management LLCSuperinvestorARK Invest | 15,519,322 | $31.2M | 0.18% | +1,071,105+7.4% | Added |
| Putnam Investments LLC | 0 | $0 | 0.00% | −157,589−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −62,058−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −35,358−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −28,169−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −11,792−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −11,330−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −11,263−100.0% | Sold out |
| China Universal Asset Management Co., Ltd. | 0 | $0 | 0.00% | −3,127−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −800−100.0% | Sold out |