QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

FNY Investment Advisers, LLC's Holding History (CIK: 0001742998)

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

Q4 2025
Shares 4,000 Value ($000) $0 Avg Close $1.63 Range $1.07 - $3.10
Q2 2025
Shares 4,000 Value ($000) $0 Avg Close $1.48 Range $1.02 - $2.15
Q1 2025
Shares 4,000 Value ($000) $0 Avg Close $1.92 Range $1.12 - $5.77
Q3 2021
Shares 3,492 Value ($000) $29 Avg Close $9.85 Range $7.43 - $14.17
Q2 2021
Shares 3,492 Value ($000) $42 Avg Close $10.48 Range $7.85 - $13.23