Simplex Trading, LLC
- SEC CIK
- 0001488542
- Latest filing
- Aug 12, 2026
QSI holding history
Quantum-Si Inc in every 13F filed by Simplex Trading, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
QSI overviewAll 13F holders of QSIFull Q2 2026 holdings
- Shares (Q2 2026)
- 165,293
- Value
- $146.3K
- % of portfolio
- <0.1%
- Quarters held
- 13
- Since Q2 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 165,293 | $146.3K | <0.1% | +74,762+82.6% | Added | Holders |
| Q1 2026 | 90,531 | $70.1K | <0.1% | +10,024+12.5% | Added | Holders |
| Q4 2025 | 80,507 | $88.6K | <0.1% | −73,576−47.8% | Reduced | Holders |
| Q3 2025 | 154,083 | $217.0K | <0.1% | +48,549+46.0% | Added | Holders |
| Q2 2025 | 105,534 | $206.0K | <0.1% | +62,625+145.9% | Added | Holders |
| Q1 2025 | 42,909 | $51.0K | <0.1% | −263,860−86.0% | Reduced | Holders |
| Q4 2024 | 306,769 | $828.0K | <0.1% | +280,270+1,057.7% | Added | Holders |
| Q3 2024 | 26,499 | $23.0K | <0.1% | +26,499 | New | Holders |
| Q3 2023 | 0 | $0 | 0.0% | −9,322−100.0% | Sold out | Holders |
| Q2 2023 | 9,322 | $16.0K | <0.1% | +4,043+76.6% | Added | Holders |
| Q1 2023 | 5,279 | $9.00K | <0.1% | −13,568−72.0% | Reduced | Holders |
| Q4 2022 | 18,847 | $34.0K | <0.1% | +18,847 | New | Holders |
| Q4 2021 | 0 | $0 | 0.0% | −25,880−100.0% | Sold out | Holders |
| Q3 2021 | 25,880 | $312.0K | <0.1% | −1,410−5.2% | Reduced | Holders |
| Q2 2021 | 27,290 | $334.0K | <0.1% | +27,290 | New | Holders |