QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025
Shares 33,103 Value ($000) $36 Avg Close $1.63 Range $1.07 - $3.10
Q3 2025
Shares 33,103 Value ($000) $47 Avg Close $1.45 Range $0.95 - $2.18
Q2 2025
Shares 33,103 Value ($000) $65 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 33,103 Value ($000) $40 Avg Close $1.92 Range $1.12 - $5.77
Q4 2024
Shares 33,103 Value ($000) $89 Avg Close $1.17 Range $0.61 - $4.14
Q3 2024
Shares 33,103 Value ($000) $29 Avg Close $0.97 Range $0.79 - $1.26
Q2 2024
Shares 33,103 Value ($000) $35 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 34,700 Value ($000) $68 Avg Close $1.75 Range $1.38 - $2.43