QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

BALYASNY ASSET MANAGEMENT L.P.'s Holding History (CIK: 0001218710)

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

Q4 2025

Shares 19,300 Value ($000) $21 Avg Close $1.63 Range $1.07 - $3.10

Q3 2025

Shares 19,802 Value ($000) $28 Avg Close $1.45 Range $0.95 - $2.18

Q4 2024

Shares 13,488 Value ($000) $36 Avg Close $1.17 Range $0.61 - $4.14

Q1 2022

Shares 60,807 Value ($000) $285 Avg Close $4.87 Range $3.72 - $8.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,300	$21	$1.63	$1.07 - $3.10
Q3 2025	19,802	$28	$1.45	$0.95 - $2.18
Q4 2024	13,488	$36	$1.17	$0.61 - $4.14
Q1 2022	60,807	$285	$4.87	$3.72 - $8.30