QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

COMERICA BANK's Holding History (CIK: 0000901541)

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

Q2 2025

Shares 1,414 Value ($000) $9 Avg Close $5.57 Range $4.05 - $7.03

Q4 2024

Shares 195 Value ($000) $2 Avg Close $12.16 Range $9.87 - $15.67

Q3 2024

Shares 59 Value ($000) $1 Avg Close $13.36 Range $10.50 - $16.74

Q2 2024

Shares 3,872 Value ($000) $51 Avg Close $16.71 Range $11.83 - $23.86

Q1 2024

Shares 7,975 Value ($000) $188 Avg Close $24.77 Range $21.53 - $29.70

Q4 2023

Shares 18 Value ($000) $0 Avg Close $23.54 Range $19.35 - $28.78

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	1,414	$9	$5.57	$4.05 - $7.03
Q4 2024	195	$2	$12.16	$9.87 - $15.67
Q3 2024	59	$1	$13.36	$10.50 - $16.74
Q2 2024	3,872	$51	$16.71	$11.83 - $23.86
Q1 2024	7,975	$188	$24.77	$21.53 - $29.70
Q4 2023	18	$0	$23.54	$19.35 - $28.78