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 2022
Institutional positions in Quantum-Si Inc as of Jun 30, 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
- 102
- +10 vs. Q1 2022
- Shares held
- 48.6M
- +2.73M (+5.9%) vs. Q1 2022
- Total value
- $139.6M
- −$75.3M (−35.0%) vs. Q1 2022
- New holders
- 30
- 27 more added
- Sold out
- 20
- 22 more reduced
Compare with Q1 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, Q2 2022
Shares, value and share of portfolio for each institution holding Quantum-Si Inc; share changes are against Q1 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ARK Investment Management LLCSuperinvestorARK Invest | 13,869,084 | $58.9M | 0.35% | +495,527+3.7% | Added |
| IFP Advisors, Inc | 600 | – | – | 00.0% | Unchanged |
| Millennium Management LLC | 0 | $0 | 0.00% | −618,289−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −456,978−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −213,552−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −157,363−100.0% | Sold out |
| TD Asset Management Inc | 0 | $0 | 0.00% | −110,662−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −95,080−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −68,248−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −60,807−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −17,982−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −17,300−100.0% | Sold out |
| Raymond James & Associates | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −13,862−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −13,733−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −13,526−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −11,716−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −10,826−100.0% | Sold out |
| PEAK6 Investments LLC | 0 | $0 | 0.00% | −8,263−100.0% | Sold out |
| Ovata Capital Management Ltd | 0 | $0 | 0.00% | −1,400−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Koshinski Asset Management, Inc. | 0 | $0 | 0.00% | −200−100.0% | Sold out |