QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Carnegie Capital Asset Management, LLC's Holding History (CIK: 0001511506)

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

Q1 2020

Shares 32,200 Value ($000) $592 Avg Close $22.82 Range $10.89 - $29.00

Q4 2019

Shares 63,070 Value ($000) $1,490 Avg Close $22.82 Range $19.08 - $26.07

Q3 2019

Shares 67,300 Value ($000) $1,478 Avg Close $27.89 Range $21.17 - $35.69

Q2 2019

Shares 25,000 Value ($000) $845 Avg Close $25.87 Range $19.54 - $36.15

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	32,200	$592	$22.82	$10.89 - $29.00
Q4 2019	63,070	$1,490	$22.82	$19.08 - $26.07
Q3 2019	67,300	$1,478	$27.89	$21.17 - $35.69
Q2 2019	25,000	$845	$25.87	$19.54 - $36.15