QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Altium Capital Management LP's Holding History (CIK: 0001746382)

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

Q4 2022

Shares 224,800 Value ($000) $3,113 Avg Close $11.51 Range $8.19 - $14.55

Q3 2022

Shares 95,000 Value ($000) $1,047 Avg Close $12.71 Range $6.31 - $19.46

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	224,800	$3,113	$11.51	$8.19 - $14.55
Q3 2022	95,000	$1,047	$12.71	$6.31 - $19.46