QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

HighTower Advisors, LLC's Holding History (CIK: 0001462245)

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

Q4 2018

Shares 10,850 Value ($000) $198 Avg Close $17.94 Range $16.00 - $22.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	10,850	$198	$17.94	$16.00 - $22.23