QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q1 2022

Shares 456,978 Value ($000) $2,139 Avg Close $4.87 Range $3.72 - $8.30

Q4 2021

Shares 501,756 Value ($000) $3,949 Avg Close $7.53 Range $5.33 - $9.10

Q2 2021

Shares 3,125,374 Value ($000) $34,350 Avg Close $10.48 Range $7.85 - $13.23

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2022	456,978	$2,139	$4.87	$3.72 - $8.30
Q4 2021	501,756	$3,949	$7.53	$5.33 - $9.10
Q2 2021	3,125,374	$34,350	$10.48	$7.85 - $13.23