QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

PRINCIPAL SECURITIES, INC.'s Holding History (CIK: 0000012600)

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

Q3 2025
Shares 6,641 Value ($000) $9 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 6,641 Value ($000) $13 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 4,912 Value ($000) $13 Avg Close $1.92 Range $1.12 - $5.77
Q4 2024
Shares 4,912 Value ($000) $13 Avg Close $1.17 Range $0.61 - $4.14
Q3 2024
Shares 1,137 Value ($000) $1 Avg Close $0.97 Range $0.79 - $1.26
Q2 2024
Shares 584 Value ($000) $1 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 697 Value ($000) $1 Avg Close $1.75 Range $1.38 - $2.43
Q4 2023
Shares 891 Value ($000) $2 Avg Close $1.52 Range $1.12 - $2.31