QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

UBS ASSET MANAGEMENT AMERICAS INC's Holding History (CIK: 0000861177)

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

Q4 2022

Shares 77,937 Value ($000) $143 Avg Close $2.58 Range $1.72 - $3.61

Q3 2022

Shares 57,400 Value ($000) $157,850 Avg Close $3.20 Range $2.31 - $4.43

Q2 2022

Shares 82,500 Value ($000) $191,400 Avg Close $3.83 Range $2.22 - $4.97

Q1 2022

Shares 82,500 Value ($000) $386,100 Avg Close $4.87 Range $3.72 - $8.30

Q4 2021

Shares 82,500 Value ($000) $649,275 Avg Close $7.53 Range $5.33 - $9.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	77,937	$143	$2.58	$1.72 - $3.61
Q3 2022	57,400	$157,850	$3.20	$2.31 - $4.43
Q2 2022	82,500	$191,400	$3.83	$2.22 - $4.97
Q1 2022	82,500	$386,100	$4.87	$3.72 - $8.30
Q4 2021	82,500	$649,275	$7.53	$5.33 - $9.10