QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Leonteq Securities AG's Holding History (CIK: 0001535950)

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

Q4 2025
Shares 25,000 Value ($000) $28 Avg Close $1.63 Range $1.07 - $3.10
Q3 2025
Shares 25,000 Value ($000) $35 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 25,000 Value ($000) $49 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 25,000 Value ($000) $30 Avg Close $1.92 Range $1.12 - $5.77
Q2 2024
Shares 11,000 Value ($000) $12 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 11,000 Value ($000) $22 Avg Close $1.75 Range $1.38 - $2.43
Q4 2023
Shares 11,300 Value ($000) $23 Avg Close $1.52 Range $1.12 - $2.31
Q3 2023
Shares 7,500 Value ($000) $12 Avg Close $2.41 Range $1.57 - $3.90
Q2 2023
Shares 7,500 Value ($000) $13 Avg Close $1.57 Range $1.36 - $1.94
Q1 2023
Shares 7,500 Value ($000) $13 Avg Close $1.97 Range $1.54 - $2.63
Q4 2022
Shares 7,500 Value ($000) $14 Avg Close $2.58 Range $1.72 - $3.61
Q3 2022
Shares 7,500 Value ($000) $21 Avg Close $3.20 Range $2.31 - $4.43
Q2 2022
Shares 7,500 Value ($000) $17 Avg Close $3.83 Range $2.22 - $4.97
Q1 2022
Shares 7,500 Value ($000) $34 Avg Close $4.87 Range $3.72 - $8.30