QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Virtu Financial LLC's Holding History (CIK: 0001533964)

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

Q4 2025

Shares 20,626 Value ($000) $0 Avg Close $6.21 Range $4.50 - $7.88

Q1 2024

Shares 14,483 Value ($000) $0 Avg Close $24.77 Range $21.53 - $29.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	20,626	$0	$6.21	$4.50 - $7.88
Q1 2024	14,483	$0	$24.77	$21.53 - $29.70