QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Pier Capital, LLC's Holding History (CIK: 0001310051)

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

Q1 2025

Shares 848,353 Value ($000) $5,523 Avg Close $8.34 Range $6.16 - $12.41

Q4 2024

Shares 679,680 Value ($000) $7,225 Avg Close $12.16 Range $9.87 - $15.67

Q3 2024

Shares 511,798 Value ($000) $6,633 Avg Close $13.36 Range $10.50 - $16.74

Q2 2024

Shares 414,542 Value ($000) $5,476 Avg Close $16.71 Range $11.83 - $23.86

Q1 2024

Shares 278,491 Value ($000) $6,561 Avg Close $24.77 Range $21.53 - $29.70

Q4 2023

Shares 210,636 Value ($000) $5,759 Avg Close $23.54 Range $19.35 - $28.78

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	848,353	$5,523	$8.34	$6.16 - $12.41
Q4 2024	679,680	$7,225	$12.16	$9.87 - $15.67
Q3 2024	511,798	$6,633	$13.36	$10.50 - $16.74
Q2 2024	414,542	$5,476	$16.71	$11.83 - $23.86
Q1 2024	278,491	$6,561	$24.77	$21.53 - $29.70
Q4 2023	210,636	$5,759	$23.54	$19.35 - $28.78