QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q1 2025

Shares 11,023 Value ($000) $72 Avg Close $8.34 Range $6.16 - $12.41

Q2 2024

Shares 21,461 Value ($000) $284 Avg Close $16.71 Range $11.83 - $23.86

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	11,023	$72	$8.34	$6.16 - $12.41
Q2 2024	21,461	$284	$16.71	$11.83 - $23.86