QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2020

Shares 6,503 Value ($000) $302 Avg Close $43.65 Range $33.55 - $52.75

Q2 2019

Shares 582 Value ($000) $20 Avg Close $25.87 Range $19.54 - $36.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	6,503	$302	$43.65	$33.55 - $52.75
Q2 2019	582	$20	$25.87	$19.54 - $36.15