QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

HARBOR CAPITAL ADVISORS, INC.'s Holding History (CIK: 0001039128)

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

Q4 2024

Shares 139,955 Value ($000) $1 Avg Close $12.16 Range $9.87 - $15.67

Q3 2024

Shares 192,444 Value ($000) $2 Avg Close $13.36 Range $10.50 - $16.74

Q2 2024

Shares 83,941 Value ($000) $1 Avg Close $16.71 Range $11.83 - $23.86

Q1 2024

Shares 9,623 Value ($000) $0 Avg Close $24.77 Range $21.53 - $29.70

Q2 2023

Shares 1,342 Value ($000) $30 Avg Close $17.82 Range $10.64 - $24.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2024	139,955	$1	$12.16	$9.87 - $15.67
Q3 2024	192,444	$2	$13.36	$10.50 - $16.74
Q2 2024	83,941	$1	$16.71	$11.83 - $23.86
Q1 2024	9,623	$0	$24.77	$21.53 - $29.70
Q2 2023	1,342	$30	$17.82	$10.64 - $24.14