QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Cetera Investment Advisers's Holding History (CIK: 0001666741)

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

Q2 2025

Shares 18,771 Value ($000) $37 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 19,101 Value ($000) $23 Avg Close $1.92 Range $1.12 - $5.77

Q4 2024

Shares 13,380 Value ($000) $36 Avg Close $1.17 Range $0.61 - $4.14

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	18,771	$37	$1.48	$1.02 - $2.15
Q1 2025	19,101	$23	$1.92	$1.12 - $5.77
Q4 2024	13,380	$36	$1.17	$0.61 - $4.14