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 2022
Institutional positions in Quantum-Si Inc as of Dec 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
- 105
- +5 vs. Q3 2022
- Shares held
- 49.7M
- +2.73M (+5.8%) vs. Q3 2022
- Total value
- $90.9M
- −$38.2M (−29.6%) vs. Q3 2022
- New holders
- 17
- 35 more added
- Sold out
- 12
- 22 more reduced
2 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Quantum-Si Inc; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ARK Investment Management LLCSuperinvestorARK Invest | 11,856,184 | $21.7M | 0.19% | −1,381,606−10.4% | Reduced |
| BlackRock Inc. | 6,461,509 | $11.8M | 0.00% | +106,769+1.7% | Added |
| Vanguard Group Inc | 4,947,178 | $9.05M | 0.00% | +26,256+0.5% | Added |
| Glenview Capital Management, LLC | 4,249,956 | $7.78M | 0.19% | −847,016−16.6% | Reduced |
| Security Benefit Life Insurance Co | 4,159,426 | $7.61M | 0.97% | +4,159,426 | New |
| Foresite Capital Management IV, LLC | 1,771,249 | $3.24M | 1.38% | 00.0% | Unchanged |
| State Street Corp | 1,767,729 | $3.23M | 0.00% | +44,392+2.6% | Added |
| Nomura Holdings Inc | 1,751,544 | $3.17M | 0.03% | +1,751,544 | New |
| Geode Capital Management, LLC | 1,694,944 | $3.10M | 0.00% | +81,484+5.1% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,186,120 | $2.17M | 0.00% | −82,651−6.5% | Reduced |
| Nikko Asset Management Americas, Inc. | 1,186,120 | $2.15M | 0.03% | −82,651−6.5% | Reduced |
| Foresite Capital Management V, LLC | 924,379 | $1.69M | 1.31% | 00.0% | Unchanged |
| Northern Trust Corp | 771,007 | $1.41M | 0.00% | −1,572−0.2% | Reduced |
| Fosun International Ltd | 743,935 | $1.36M | 0.12% | 00.0% | Unchanged |
| Rubric Capital Management LP | 672,385 | $1.23M | 0.05% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 612,490 | $1.12M | 0.01% | −66,227−9.8% | Reduced |
| Neumann Advisory Hong Kong Ltd | 427,631 | $783.0K | 0.48% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 402,974 | $737.4K | 0.00% | +6,869+1.7% | Added |
| Nuveen Asset Management, LLC | 320,303 | $586.0K | 0.00% | −45,098−12.3% | Reduced |
| Bank of New York Mellon Corp | 295,654 | $541.0K | 0.00% | +19,688+7.1% | Added |
| Charles Schwab Investment Management Inc | 238,228 | $436.0K | 0.00% | +5,242+2.2% | Added |
| Clearline Capital LP | 211,900 | $387.8K | 0.07% | 00.0% | Unchanged |
| Swiss National Bank | 201,900 | $369.5K | 0.00% | +7,400+3.8% | Added |
| Cubist Systematic Strategies, LLC | 172,776 | $316.2K | 0.00% | +74,471+75.8% | Added |
| Citadel Advisors LLC | 144,784 | $265.0K | 0.00% | −21,346−12.8% | Reduced |
| Morgan Stanley | 144,760 | $264.9K | 0.00% | +37,004+34.3% | Added |
| Rhumbline Advisers | 134,614 | $246.0K | 0.00% | +2,018+1.5% | Added |
| General American Investors Co Inc | 119,250 | $218.2K | 0.02% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 118,829 | $217.5K | 0.00% | +38,068+47.1% | Added |
| D. E. Shaw & Co., Inc. | 113,514 | $207.7K | 0.00% | −5,859−4.9% | Reduced |
| Bank of America Corp | 111,901 | $204.8K | 0.00% | +98,862+758.2% | Added |
| California State Teachers Retirement System | 109,039 | $199.5K | 0.00% | +1,295+1.2% | Added |
| D.A. Davidson & Co. | 105,000 | $192.2K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 96,442 | $176.5K | 0.00% | +96,442 | New |
| UBS Asset Management Americas Inc | 77,937 | $142.6K | 0.00% | +20,537+35.8% | Added |
| New York State Common Retirement Fund | 65,213 | $119.3K | 0.00% | +130.0% | Added |
| Westchester Capital Management, LLC | 64,964 | $118.9K | 0.00% | 00.0% | Unchanged |
| Credit Suisse AG | 56,221 | $102.9K | 0.00% | +1,969+3.6% | Added |
| JPMorgan Chase & Co | 55,653 | $102.0K | 0.00% | −2,648−4.5% | Reduced |
| Barclays PLC | 54,285 | $99.3K | 0.00% | +18,954+53.6% | Added |
| Price T Rowe Associates Inc | 46,351 | $85.0K | 0.00% | +2,038+4.6% | Added |
| Two Sigma Investments, LP | 46,200 | $84.5K | 0.00% | +46,200 | New |
| American International Group, Inc. | 43,205 | $79.1K | 0.00% | −158−0.4% | Reduced |
| Invesco Ltd. | 41,369 | $75.7K | 0.00% | −147−0.4% | Reduced |
| Manufacturers Life Insurance Company, The | 38,129 | $69.8K | 0.00% | +2,364+6.6% | Added |
| Renaissance Technologies LLC | 37,556 | $69.0K | 0.00% | +37,556 | New |
| Deutsche Bank AG | 37,693 | $69.0K | 0.00% | +609+1.6% | Added |
| UBS Group AG | 37,168 | $68.0K | 0.00% | +29,455+381.9% | Added |
| Red Wave Investments LLC | 37,000 | $67.7K | 0.03% | 00.0% | Unchanged |
| Raymond James Financial Services Advisors, Inc. | 36,302 | $66.4K | 0.00% | −15,041−29.3% | Reduced |
| MetLife Investment Management | 35,556 | $65.1K | 0.00% | −18,051−33.7% | Reduced |
| Voya Investment Management LLC | 34,715 | $63.5K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 33,903 | $62.0K | 0.00% | +2,699+8.6% | Added |
| Legal & General Group Plc | 31,817 | $58.2K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 31,500 | $57.6K | 0.00% | +11,800+59.9% | Added |
| Principal Financial Group Inc | 28,797 | $52.7K | 0.00% | +5,713+24.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 27,756 | $50.8K | 0.00% | +3,339+13.7% | Added |
| Cambridge Investment Research Advisors, Inc. | 27,017 | $49.0K | 0.00% | −1,056−3.8% | Reduced |
| Guidance Point Advisors, LLC | 25,742 | $47.1K | 0.02% | 00.0% | Unchanged |
| Round Rock Advisors, LLC | 24,885 | $45.5K | 0.02% | +850+3.5% | Added |
| Allspring Global Investments Holdings, LLC | 24,751 | $45.3K | 0.00% | +17,736+252.8% | Added |
| Aquatic Capital Management LLC | 24,800 | $45.0K | 0.00% | +24,800 | New |
| Arizona State Retirement System | 23,590 | $43.2K | 0.00% | +949+4.2% | Added |
| Janus Henderson Group PLC | 22,044 | $40.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 21,668 | $39.7K | 0.00% | +1,555+7.7% | Added |
| STRS Ohio | 21,300 | $38.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 18,847 | $34.0K | 0.00% | +18,847 | New |
| Tower Research Capital LLC (TRC) | 17,387 | $32.0K | 0.00% | +6,075+53.7% | Added |
| Gsa Capital Partners LLP | 16,713 | $31.0K | 0.00% | −28,029−62.6% | Reduced |
| Wealth Management Associates, Inc. | 15,800 | $28.9K | 0.02% | +15,800 | New |
| Flagship Private Wealth, LLC | 14,158 | $25.9K | 0.02% | 00.0% | Unchanged |
| Procyon Private Wealth Partners, LLC | 13,671 | $25.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 13,340 | $24.4K | 0.00% | −5,208−28.1% | Reduced |
| Mutual Advisors, LLC | 13,309 | $24.4K | 0.00% | −8,130−37.9% | Reduced |
| State of Wyoming | 12,792 | $23.4K | 0.01% | +12,792 | New |
| Prelude Capital Management, LLC | 12,134 | $22.2K | 0.00% | +12,134 | New |
| Amalgamated Bank | 11,568 | $21.0K | 0.00% | 00.0% | Unchanged |
| FSA Wealth Management LLC | 11,150 | $20.4K | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 11,107 | $20.0K | 0.00% | +11,107 | New |
| Victory Capital Management Inc | 10,437 | $19.1K | 0.00% | −40.0% | Reduced |
| State of Wisconsin Investment Board | 10,434 | $19.1K | 0.00% | −5,107−32.9% | Reduced |
| Royal Bank of Canada | 10,314 | $19.0K | 0.00% | +9,202+827.5% | Added |
| Ameritas Investment Partners, Inc. | 6,850 | $15.4K | 0.00% | 00.0% | Unchanged |
| Leonteq Securities AG | 7,500 | $13.7K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 6,222 | $11.4K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 4,127 | $7.55K | 0.00% | −634−13.3% | Reduced |
| Advisor Group Holdings, Inc. | 3,570 | $6.65K | 0.00% | +600+20.2% | Added |
| China Universal Asset Management Co., Ltd. | 1,218 | $2.23K | 0.00% | +99+8.8% | Added |
| Wolff Wiese Magana LLC | 1,200 | $2.20K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 1,134 | $2.08K | 0.00% | −3,520−75.6% | Reduced |
| US Bancorp | 800 | $1.46K | 0.00% | 00.0% | Unchanged |
| Point72 Middle East FZE | 681 | $1.25K | 0.00% | +681 | New |
| First Manhattan Co | 600 | $1.10K | 0.00% | 00.0% | Unchanged |
| Johnson Midwest Financial, LLC | 770 | $1.00K | 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 |
| Ronald Blue Trust, Inc. | 189 | $1.00K | 0.00% | +189 | New |
| Retirement Financial Solutions, LLC | 492 | $900 | 0.00% | +492 | New |
| Eagle Bay Advisors LLC | 277 | $507 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 250 | $458 | 0.00% | +250 | New |