Renaissance Technologies (RenTech)'s QSI Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 117,900 shares of Quantum-Si incorporated (QSI) worth $91,255, representing 0.00% of the portfolio. First purchased in 2022-Q4, this medium-term investment has been held for 10 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in QSI, demonstrating sustained confidence in this investment. Largest addition occurred in Q4 2024, adding 503,400 shares. Largest reduction occurred in Q2 2025, reducing 782,556 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Quantum-Si incorporated (QSI) Holding Value Over Time
Track share changes against reported price movement
Quarterly Quantum-Si incorporated (QSI) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +117,900 | New Buy | 117,900 | $0.77 |
| Q3 2025 | -89,200 | Sold Out | 0 | $0.00 |
| Q2 2025 | -782,556 | Reduce 89.77% | 89,200 | $1.96 |
| Q1 2025 | +326,800 | Add 59.97% | 871,756 | $1.20 |
| Q4 2024 | +503,400 | Add 1211.38% | 544,956 | $2.70 |
| Q3 2024 | +41,556 | New Buy | 41,556 | $0.88 |
| Q3 2023 | -223,256 | Sold Out | 0 | $0.00 |
| Q2 2023 | +110,400 | Add 97.82% | 223,256 | $0.00 |
| Q1 2023 | +75,300 | Add 200.50% | 112,856 | $0.00 |
| Q4 2022 | +37,556 | New Buy | 37,556 | $0.00 |
Renaissance Technologies (RenTech)'s Quantum-Si incorporated Investment FAQs
Renaissance Technologies (RenTech) first purchased Quantum-Si incorporated (QSI) in Q4 2022, acquiring 37,556 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Quantum-Si incorporated (QSI) for 10 quarters since Q4 2022.
Renaissance Technologies (RenTech)'s largest addition to Quantum-Si incorporated (QSI) was in Q4 2024, adding 544,956 shares worth $1.47 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 117,900 shares of Quantum-Si incorporated (QSI), valued at approximately $91,255.
As of the Q1 2026 filing, Quantum-Si incorporated (QSI) represents approximately 0.00% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Quantum-Si incorporated (QSI) was 871,756 shares, as reported at the end of Q1 2025.