QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

NEUBERGER BERMAN GROUP LLC's Holding History (CIK: 0001465109)

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

Q4 2025

Shares 26,820 Value ($000) $30 Avg Close $1.63 Range $1.07 - $3.10

Q2 2025

Shares 13,430 Value ($000) $26 Avg Close $1.48 Range $1.02 - $2.15

Q1 2025

Shares 15,919 Value ($000) $19 Avg Close $1.92 Range $1.12 - $5.77

Q3 2023

Shares 11,330 Value ($000) $19 Avg Close $2.41 Range $1.57 - $3.90

Q2 2023

Shares 11,275 Value ($000) $20 Avg Close $1.57 Range $1.36 - $1.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	26,820	$30	$1.63	$1.07 - $3.10
Q2 2025	13,430	$26	$1.48	$1.02 - $2.15
Q1 2025	15,919	$19	$1.92	$1.12 - $5.77
Q3 2023	11,330	$19	$2.41	$1.57 - $3.90
Q2 2023	11,275	$20	$1.57	$1.36 - $1.94