QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

SECTORAL ASSET MANAGEMENT INC's Holding History (CIK: 0001274413)

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

Q3 2021

Shares 116,186 Value ($000) $5,785 Avg Close $51.55 Range $44.20 - $60.95

Q2 2021

Shares 134,186 Value ($000) $7,871 Avg Close $58.04 Range $41.76 - $69.22

Q1 2021

Shares 243,689 Value ($000) $14,248 Avg Close $67.60 Range $42.92 - $92.57

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	116,186	$5,785	$51.55	$44.20 - $60.95
Q2 2021	134,186	$7,871	$58.04	$41.76 - $69.22
Q1 2021	243,689	$14,248	$67.60	$42.92 - $92.57