QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Nuveen, LLC's Holding History (CIK: 0001871926)

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

Q4 2025

Shares 71,455 Value ($000) $454 Avg Close $6.21 Range $4.50 - $7.88

Q3 2025

Shares 71,455 Value ($000) $388 Avg Close $5.32 Range $4.15 - $7.09

Q2 2025

Shares 71,455 Value ($000) $475 Avg Close $5.57 Range $4.05 - $7.03

Q1 2025

Shares 415,378 Value ($000) $2,704 Avg Close $8.34 Range $6.16 - $12.41

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	71,455	$454	$6.21	$4.50 - $7.88
Q3 2025	71,455	$388	$5.32	$4.15 - $7.09
Q2 2025	71,455	$475	$5.57	$4.05 - $7.03
Q1 2025	415,378	$2,704	$8.34	$6.16 - $12.41