QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

CIBC WORLD MARKETS CORP's Holding History (CIK: 0001056527)

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

Q4 2025

Shares 10,392 Value ($000) $11 Avg Close $1.63 Range $1.07 - $3.10

Q2 2025

Shares 17,379 Value ($000) $34 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 26,667 Value ($000) $32 Avg Close $1.92 Range $1.12 - $5.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	10,392	$11	$1.63	$1.07 - $3.10
Q2 2025	17,379	$34	$1.48	$1.02 - $2.15
Q1 2025	26,667	$32	$1.92	$1.12 - $5.77