QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

R Squared Ltd's Holding History (CIK: 0001896148)

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

Q3 2025

Shares 11,771 Value ($000) $64 Avg Close $5.32 Range $4.15 - $7.09

Q4 2024

Shares 460 Value ($000) $5 Avg Close $12.16 Range $9.87 - $15.67

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	11,771	$64	$5.32	$4.15 - $7.09
Q4 2024	460	$5	$12.16	$9.87 - $15.67