QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

NewEdge Advisors, LLC's Holding History (CIK: 0001633516)

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

Q4 2025
Shares 14,042 Value ($000) $15 Avg Close $1.63 Range $1.07 - $3.10
Q3 2025
Shares 10,170 Value ($000) $14 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 10,250 Value ($000) $20 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 10,250 Value ($000) $12 Avg Close $1.92 Range $1.12 - $5.77
Q4 2024
Shares 10,250 Value ($000) $28 Avg Close $1.17 Range $0.61 - $4.14
Q3 2024
Shares 10,492 Value ($000) $9 Avg Close $0.97 Range $0.79 - $1.26
Q2 2024
Shares 10,824 Value ($000) $11 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 10,637 Value ($000) $21 Avg Close $1.75 Range $1.38 - $2.43
Q4 2023
Shares 13,742 Value ($000) $26 Avg Close $1.52 Range $1.12 - $2.31
Q3 2023
Shares 17,742 Value ($000) $29 Avg Close $2.41 Range $1.57 - $3.90
Q2 2023
Shares 492 Value ($000) $1 Avg Close $1.57 Range $1.36 - $1.94
Q1 2023
Shares 492 Value ($000) $1 Avg Close $1.97 Range $1.54 - $2.63
Q4 2022
Shares 492 Value ($000) $0 Avg Close $2.58 Range $1.72 - $3.61