QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO's Holding History (CIK: 0001141802)

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

Q2 2025

Shares 230 Value ($000) $2 Avg Close $5.57 Range $4.05 - $7.03

Q4 2024

Shares 100 Value ($000) $1 Avg Close $12.16 Range $9.87 - $15.67

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	230	$2	$5.57	$4.05 - $7.03
Q4 2024	100	$1	$12.16	$9.87 - $15.67