Catherine Wood's QSI Position Overview
Catherine Wood (via Ark Investment Management LLC) currently holds 6.88 M shares of Quantum-Si incorporated (QSI) worth $5.32 M, representing 0.04% of the portfolio. First purchased in 2021-Q2, this medium-term investment has been held for 20 quarters.
Based on 13F filings, Catherine Wood has maintained a strategic position in QSI, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2021, adding 8.65 M shares. Largest reduction occurred in Q4 2024, reducing 2.99 M shares.
Analysis based on 13F filings available since 2013 Q2
Catherine Wood's Quantum-Si incorporated (QSI) Holding Value Over Time
Track share changes against reported price movement
Quarterly Quantum-Si incorporated (QSI) Trades by Catherine Wood
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -142,672 | Reduce 2.03% | 6.88 M | $0.77 |
| Q4 2025 | -602,471 | Reduce 7.90% | 7.02 M | $1.10 |
| Q3 2025 | -336,694 | Reduce 4.23% | 7.62 M | $1.41 |
| Q2 2025 | -752,765 | Reduce 8.64% | 7.96 M | $1.96 |
| Q1 2025 | -135,149 | Reduce 1.53% | 8.71 M | $1.20 |
| Q4 2024 | -2.99 M | Reduce 25.28% | 8.85 M | $2.70 |
| Q3 2024 | -567,320 | Reduce 4.57% | 11.84 M | $0.88 |
| Q2 2024 | -358,947 | Reduce 2.81% | 12.41 M | $1.05 |
| Q1 2024 | -2.75 M | Reduce 17.72% | 12.77 M | $1.97 |
| Q4 2023 | +1.07 M | Add 7.41% | 15.52 M | $2.01 |
| Q3 2023 | +1.69 M | Add 13.28% | 14.45 M | $1.66 |
| Q2 2023 | +1.06 M | Add 9.02% | 12.75 M | $1.79 |
| Q1 2023 | -157,393 | Reduce 1.33% | 11.7 M | $1.76 |
| Q4 2022 | -1.38 M | Reduce 10.44% | 11.86 M | $1.83 |
| Q3 2022 | -631,294 | Reduce 4.55% | 13.24 M | $2.75 |
| Q2 2022 | +495,527 | Add 3.71% | 13.87 M | $4.25 |
| Q1 2022 | +306,407 | Add 2.34% | 13.37 M | $4.68 |
| Q4 2021 | +368,769 | Add 2.90% | 13.07 M | $7.87 |
| Q3 2021 | +8.65 M | Add 213.67% | 12.7 M | $8.34 |
| Q2 2021 | +4.05 M | New Buy | 4.05 M | $12.26 |
Catherine Wood's Quantum-Si incorporated Investment FAQs
Catherine Wood first purchased Quantum-Si incorporated (QSI) in Q2 2021, acquiring 4,048,303 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Catherine Wood has held Quantum-Si incorporated (QSI) for 20 quarters since Q2 2021.
Catherine Wood's largest addition to Quantum-Si incorporated (QSI) was in Q3 2021, adding 12,698,381 shares worth $105.9 M.
According to the latest 13F filing for Q1 2026, Catherine Wood's firm, Ark Investment Management LLC, owns 6,878,899 shares of Quantum-Si incorporated (QSI), valued at approximately $5.32 M.
As of the Q1 2026 filing, Quantum-Si incorporated (QSI) represents approximately 0.04% of Catherine Wood's publicly disclosed stock portfolio, making it one of their key holdings.
Catherine Wood's peak holding in Quantum-Si incorporated (QSI) was 15,519,322 shares, as reported at the end of Q4 2023.