QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

SBI Securities Co., Ltd.'s Holding History (CIK: 0001851815)

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

Q4 2025

Shares 62 Value ($000) $0 Avg Close $6.21 Range $4.50 - $7.88

Q3 2025

Shares 62 Value ($000) $0 Avg Close $5.32 Range $4.15 - $7.09

Q2 2025

Shares 62 Value ($000) $0 Avg Close $5.57 Range $4.05 - $7.03

Q1 2025

Shares 62 Value ($000) $0 Avg Close $8.34 Range $6.16 - $12.41

Q4 2024

Shares 62 Value ($000) $1 Avg Close $12.16 Range $9.87 - $15.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	62	$0	$6.21	$4.50 - $7.88
Q3 2025	62	$0	$5.32	$4.15 - $7.09
Q2 2025	62	$0	$5.57	$4.05 - $7.03
Q1 2025	62	$0	$8.34	$6.16 - $12.41
Q4 2024	62	$1	$12.16	$9.87 - $15.67