QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

BARCLAYS PLC's Holding History (CIK: 0000312069)

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

Q4 2025
Shares 269,415 Value ($000) $296 Avg Close $1.63 Range $1.07 - $3.10
Q3 2025
Shares 196,826 Value ($000) $174 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 239,001 Value ($000) $468 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 120,888 Value ($000) $145 Avg Close $1.92 Range $1.12 - $5.77
Q4 2024
Shares 150,616 Value ($000) $407 Avg Close $1.17 Range $0.61 - $4.14
Q3 2024
Shares 196,826 Value ($000) $0 Avg Close $0.97 Range $0.79 - $1.26
Q2 2024
Shares 63,388 Value ($000) $67 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 101,355 Value ($000) $200 Avg Close $1.75 Range $1.38 - $2.43
Q4 2023
Shares 169,608 Value ($000) $341 Avg Close $1.52 Range $1.12 - $2.31
Q3 2023
Shares 47,938 Value ($000) $80 Avg Close $2.41 Range $1.57 - $3.90
Q2 2023
Shares 49,777 Value ($000) $0 Avg Close $1.57 Range $1.36 - $1.94
Q1 2023
Shares 76,135 Value ($000) $0 Avg Close $1.97 Range $1.54 - $2.63
Q4 2022
Shares 54,285 Value ($000) $0 Avg Close $2.58 Range $1.72 - $3.61
Q3 2022
Shares 35,331 Value ($000) $98 Avg Close $3.20 Range $2.31 - $4.43
Q2 2022
Shares 36,042 Value ($000) $84 Avg Close $3.83 Range $2.22 - $4.97
Q1 2022
Shares 31,838 Value ($000) $149 Avg Close $4.87 Range $3.72 - $8.30