QUANTUM SI INC

Ticker: QSI CUSIP: 74765K105 Class: Common Stock

PRELUDE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001387508)

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

Q2 2023

Shares 20,934 Value ($000) $37 Avg Close $1.57 Range $1.36 - $1.94

Q1 2023

Shares 19,347 Value ($000) $34 Avg Close $1.97 Range $1.54 - $2.63

Q4 2022

Shares 12,134 Value ($000) $22 Avg Close $2.58 Range $1.72 - $3.61

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	20,934	$37	$1.57	$1.36 - $1.94
Q1 2023	19,347	$34	$1.97	$1.54 - $2.63
Q4 2022	12,134	$22	$2.58	$1.72 - $3.61