QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Bangor Savings Bank's Holding History (CIK: 0001352675)

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

Q3 2025
Shares 400 Value ($000) $1 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 400 Value ($000) $1 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 400 Value ($000) $0 Avg Close $1.92 Range $1.12 - $5.77