QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Virtu Financial LLC's Holding History (CIK: 0001533964)

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

Q4 2025
Shares 238,379 Value ($000) $0 Avg Close $1.63 Range $1.07 - $3.10
Q1 2025
Shares 34,830 Value ($000) $0 Avg Close $1.92 Range $1.12 - $5.77
Q2 2024
Shares 101,301 Value ($000) $0 Avg Close $1.60 Range $0.73 - $1.99
Q1 2024
Shares 49,988 Value ($000) $0 Avg Close $1.75 Range $1.38 - $2.43
Q3 2023
Shares 35,358 Value ($000) $0 Avg Close $2.41 Range $1.57 - $3.90
Q3 2022
Shares 12,509 Value ($000) $34 Avg Close $3.20 Range $2.31 - $4.43
Q1 2022
Shares 11,716 Value ($000) $55 Avg Close $4.87 Range $3.72 - $8.30
Q4 2021
Shares 43,437 Value ($000) $342 Avg Close $7.53 Range $5.33 - $9.10
Q3 2021
Shares 16,935 Value ($000) $141 Avg Close $9.85 Range $7.43 - $14.17