QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

XTX Topco Ltd's Holding History (CIK: 0001828301)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 461,982 Value ($000) $508 Avg Close $1.63 Range $1.07 - $3.10
Q3 2025
Shares 150,532 Value ($000) $212 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 46,474 Value ($000) $91 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 368,968 Value ($000) $443 Avg Close $1.92 Range $1.12 - $5.77
Q4 2024
Shares 245,585 Value ($000) $663 Avg Close $1.17 Range $0.61 - $4.14
Q3 2024
Shares 43,812 Value ($000) $39 Avg Close $0.97 Range $0.79 - $1.26
Q2 2024
Shares 24,161 Value ($000) $25 Avg Close $1.60 Range $0.73 - $1.99
Q2 2023
Shares 44,168 Value ($000) $79 Avg Close $1.57 Range $1.36 - $1.94
Q2 2022
Shares 25,530 Value ($000) $59 Avg Close $3.83 Range $2.22 - $4.97