QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Cormorant Asset Management, LP's Holding History (CIK: 0001583977)

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

Q4 2018

Shares 54,945 Value ($000) $1,006 Avg Close $17.94 Range $16.00 - $22.23

Q3 2018

Shares 54,945 Value ($000) $1,177 Avg Close $15.81 Range $13.00 - $22.61

Q2 2018

Shares 847,788 Value ($000) $12,174 Avg Close $17.31 Range $13.53 - $20.83

Q1 2018

Shares 847,789 Value ($000) $14,446 Avg Close $20.04 Range $16.03 - $24.80

Q4 2017

Shares 847,789 Value ($000) $18,202 Avg Close $19.52 Range $15.56 - $23.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	54,945	$1,006	$17.94	$16.00 - $22.23
Q3 2018	54,945	$1,177	$15.81	$13.00 - $22.61
Q2 2018	847,788	$12,174	$17.31	$13.53 - $20.83
Q1 2018	847,789	$14,446	$20.04	$16.03 - $24.80
Q4 2017	847,789	$18,202	$19.52	$15.56 - $23.70