QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

Blackstone Inc.'s Holding History (CIK: 0001393818)

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

Q3 2021

Shares 850,000 Value ($000) $7,089 Avg Close $9.85 Range $7.43 - $14.17

Q2 2021

Shares 850,000 Value ($000) $10,421 Avg Close $10.48 Range $7.85 - $13.23

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	850,000	$7,089	$9.85	$7.43 - $14.17
Q2 2021	850,000	$10,421	$10.48	$7.85 - $13.23