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, Q2 2024
Institutional positions in Quantum-Si Inc as of Jun 30, 2024. 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
- 99
- +5 vs. Q1 2024
- Shares held
- 53.5M
- +595.3K (+1.1%) vs. Q1 2024
- Total value
- $56.1M
- −$48.1M (−46.2%) vs. Q1 2024
- New holders
- 16
- 30 more added
- Sold out
- 11
- 29 more reduced
1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2024: 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, Q2 2024
Shares, value and share of portfolio for each institution holding Quantum-Si Inc; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CWM, LLC | 168 | $0 | 0.00% | +159+1,766.7% | Added |
| Federation des caisses Desjardins du Quebec | 50 | $53 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 75 | $79 | 0.00% | +75 | New |
| Planning Capital Management Corp | 115 | $121 | 0.00% | +115 | New |
| Nisa Investment Advisors, LLC | 125 | $131 | 0.00% | −38−23.3% | Reduced |
| TD Waterhouse Canada Inc. | 300 | $280 | 0.00% | 00.0% | Unchanged |
| Eagle Bay Advisors LLC | 277 | $291 | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 584 | $613 | 0.00% | −113−16.2% | Reduced |
| Allworth Financial LP | 836 | $862 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 939 | $986 | 0.00% | −3,356−78.1% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 1,357 | $1.42K | 0.00% | −6,691−83.1% | Reduced |
| Steward Partners Investment Advisory, LLC | 2,000 | $2.10K | 0.00% | −500−20.0% | Reduced |
| Amalgamated Bank | 3,170 | $3.00K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 3,234 | $3.40K | 0.00% | +3,091+2,161.5% | Added |
| Archer Investment Corp | 3,399 | $3.57K | 0.00% | +2,000+143.0% | Added |
| California State Teachers Retirement System | 7,257 | $7.62K | 0.00% | −2,973−29.1% | Reduced |
| Legal & General Group Plc | 9,294 | $9.76K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 9,463 | $10.0K | 0.00% | +7,139+307.2% | Added |
| Ameritas Investment Partners, Inc. | 9,906 | $10.4K | 0.00% | 00.0% | Unchanged |
| TriaGen Wealth Management LLC | 10,000 | $10.5K | 0.00% | 00.0% | Unchanged |
| Eqis Capital Management, Inc. | 10,422 | $10.9K | 0.00% | +10,422 | New |
| Advisor Group Holdings, Inc. | 10,752 | $11.3K | 0.00% | −1,000−8.5% | Reduced |
| GWM Advisors LLC | 10,824 | $11.4K | 0.00% | +187+1.8% | Added |
| TownSquare Capital, LLC | 10,970 | $11.5K | 0.00% | +10,970 | New |
| Leonteq Securities AG | 11,000 | $11.6K | 0.00% | 00.0% | Unchanged |
| HSBC Holdings PLC | 11,932 | $11.8K | 0.00% | −4,328−26.6% | Reduced |
| Walleye Capital LLC | 11,698 | $12.3K | 0.00% | +11,698 | New |
| Stratos Wealth Advisors, LLC | 11,810 | $12.4K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 12,474 | $13.1K | 0.00% | −651−5.0% | Reduced |
| Procyon Private Wealth Partners, LLC | 13,671 | $14.4K | 0.00% | 00.0% | Unchanged |
| Flagship Private Wealth, LLC | 14,158 | $14.9K | 0.01% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 14,705 | $15.4K | 0.00% | +14,705 | New |
| Principal Financial Group Inc | 16,462 | $17.3K | 0.00% | −24,565−59.9% | Reduced |
| DLK Investment Management, LLC | 19,000 | $19.9K | 0.01% | +2,000+11.8% | Added |
| Bayesian Capital Management, LP | 19,096 | $20.1K | 0.00% | +19,096 | New |
| STRS Ohio | 20,000 | $21.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 20,350 | $21.4K | 0.00% | +20,334+127,087.5% | Added |
| Davy Global Fund Management Ltd | 21,556 | $22.6K | 0.00% | +21,556 | New |
| Commonwealth Equity Services, LLC | 22,410 | $24.0K | 0.00% | −6,000−21.1% | Reduced |
| Citigroup Inc | 23,392 | $24.6K | 0.00% | +4,061+21.0% | Added |
| XTX Topco Ltd | 24,161 | $25.4K | 0.00% | +24,161 | New |
| Dynamic Technology Lab Private Ltd | 26,060 | $27.0K | 0.00% | +26,060 | New |
| Guidance Point Advisors, LLC | 25,742 | $27.0K | 0.01% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 26,084 | $27.4K | 0.00% | +101+0.4% | Added |
| D. E. Shaw & Co., Inc. | 26,500 | $27.8K | 0.00% | +26,500 | New |
| ProShare Advisors LLC | 27,256 | $28.6K | 0.00% | +8,976+49.1% | Added |
| Arlington Trust Co LLC | 27,500 | $28.9K | 0.01% | +27,500 | New |
| Two Sigma Advisers, LP | 30,700 | $32.2K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Services Advisors, Inc. | 30,930 | $32.5K | 0.00% | +430+1.4% | Added |
| Deutsche Bank AG | 32,560 | $34.2K | 0.00% | −8,400−20.5% | Reduced |
| Voya Investment Management LLC | 32,867 | $34.5K | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 33,103 | $34.8K | 0.00% | −1,597−4.6% | Reduced |
| Neumann Advisory Hong Kong Ltd | 33,803 | $35.0K | 0.02% | −132,395−79.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 33,355 | $35.0K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 35,186 | $36.9K | 0.00% | −4,888−12.2% | Reduced |
| Red Wave Investments LLC | 37,000 | $38.9K | 0.01% | 00.0% | Unchanged |
| Wealth Management Associates, Inc. | 38,050 | $40.0K | 0.02% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 43,659 | $45.8K | 0.00% | +1,377+3.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 52,064 | $54.7K | 0.00% | +52,064 | New |
| Corebridge Financial, Inc. | 53,878 | $56.6K | 0.00% | +53,878 | New |
| Price T Rowe Associates Inc | 59,727 | $63.0K | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 60,526 | $63.6K | 0.00% | +46,726+338.6% | Added |
| Bank of America Corp | 62,410 | $65.5K | 0.00% | +5,608+9.9% | Added |
| Barclays PLC | 63,388 | $66.6K | 0.00% | −37,967−37.5% | Reduced |
| UBS Group AG | 67,227 | $70.6K | 0.00% | −35,933−34.8% | Reduced |
| Wells Fargo & Company | 68,703 | $72.1K | 0.00% | +15,633+29.5% | Added |
| Alliancebernstein L.P. | 76,080 | $79.9K | 0.00% | +20,880+37.8% | Added |
| Two Sigma Investments, LP | 89,261 | $93.7K | 0.00% | −43,295−32.7% | Reduced |
| Virtu Financial LLC | 101,301 | $106.0K | 0.01% | +51,313+102.7% | Added |
| Pathstone Holdings, LLC | 115,256 | $121.0K | 0.00% | −191−0.2% | Reduced |
| Verition Fund Management LLC | 121,800 | $127.9K | 0.00% | +121,800 | New |
| Ameriprise Financial Inc | 125,757 | $132.0K | 0.00% | +82,157+188.4% | Added |
| Green Alpha Advisors, LLC | 129,259 | $135.7K | 0.11% | −5,357−4.0% | Reduced |
| Susquehanna International Group, LLP | 135,088 | $141.8K | 0.00% | +109,662+431.3% | Added |
| Shay Capital LLC | 138,260 | $145.2K | 0.04% | +112,598+438.8% | Added |
| Rhumbline Advisers | 145,199 | $152.5K | 0.00% | +465+0.3% | Added |
| Morgan Stanley | 170,535 | $179.1K | 0.00% | −57,132−25.1% | Reduced |
| Gsa Capital Partners LLP | 182,277 | $191.0K | 0.01% | +182,277 | New |
| Goldman Sachs Group Inc | 189,170 | $198.6K | 0.00% | +95,304+101.5% | Added |
| Citadel Advisors LLC | 226,300 | $237.6K | 0.00% | +133,300+143.3% | Added |
| Guggenheim Capital LLC | 253,274 | $265.9K | 0.00% | −24,545−8.8% | Reduced |
| Charles Schwab Investment Management Inc | 260,442 | $273.5K | 0.00% | −1,033−0.4% | Reduced |
| General American Investors Co Inc | 294,350 | $309.1K | 0.02% | 00.0% | Unchanged |
| Knollwood Investment Advisory, LLC | 300,000 | $315.0K | 0.04% | 00.0% | Unchanged |
| Jane Street Group, LLC | 304,056 | $319.3K | 0.00% | +152,933+101.2% | Added |
| Bank of New York Mellon Corp | 322,460 | $338.6K | 0.00% | +10,811+3.5% | Added |
| Millennium Management LLC | 374,727 | $393.5K | 0.00% | +184,940+97.4% | Added |
| Bridgeway Capital Management, LLC | 406,700 | $427.0K | 0.01% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 565,080 | $593.3K | 0.00% | +244,383+76.2% | Added |
| Fosun International Ltd | 743,935 | $781.1K | 0.26% | 00.0% | Unchanged |
| Northern Trust Corp | 782,190 | $821.3K | 0.00% | −40,149−4.9% | Reduced |
| Jacobs Levy Equity Management, Inc | 942,762 | $989.9K | 0.00% | +436,065+86.1% | Added |
| Geode Capital Management, LLC | 2,171,830 | $2.28M | 0.00% | +37,801+1.8% | Added |
| State Street Corp | 2,371,351 | $2.49M | 0.00% | +211,542+9.8% | Added |
| Vanguard Group Inc | 4,948,362 | $5.20M | 0.00% | −352,323−6.6% | Reduced |
| BlackRock Inc. | 7,000,884 | $7.35M | 0.00% | −231,111−3.2% | Reduced |
| Nikko Asset Management Americas, Inc. | 7,863,161 | $8.10M | 0.09% | −191,342−2.4% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 7,863,161 | $8.26M | 0.01% | −191,342−2.4% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 12,409,929 | $13.0M | 0.12% | −358,947−2.8% | Reduced |
| MetLife Investment Management | 0 | $0 | 0.00% | −41,352−100.0% | Sold out |