QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

SALEM INVESTMENT COUNSELORS INC's Holding History (CIK: 0000884423)

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

Q2 2022

Shares 2,150 Value ($000) $35 Avg Close $20.56 Range $14.58 - $31.33

Q1 2022

Shares 2,150 Value ($000) $63 Avg Close $30.56 Range $22.70 - $43.32

Q4 2021

Shares 2,150 Value ($000) $91 Avg Close $46.70 Range $35.02 - $60.92

Q3 2021

Shares 2,150 Value ($000) $0 Avg Close $51.55 Range $44.20 - $60.95

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	2,150	$35	$20.56	$14.58 - $31.33
Q1 2022	2,150	$63	$30.56	$22.70 - $43.32
Q4 2021	2,150	$91	$46.70	$35.02 - $60.92
Q3 2021	2,150	$0	$51.55	$44.20 - $60.95