QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

NATIONAL BANK OF CANADA /FI/'s Holding History (CIK: 0000926171)

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

Q2 2025

Shares 600 Value ($000) $1 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 11,100 Value ($000) $13 Avg Close $1.92 Range $1.12 - $5.77

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	600	$1	$1.48	$1.02 - $2.15
Q1 2025	11,100	$13	$1.92	$1.12 - $5.77