QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q1 2025

Shares 25,542 Value ($000) $166 Avg Close $8.34 Range $6.16 - $12.41

Q4 2024

Shares 278,395 Value ($000) $2,959 Avg Close $12.16 Range $9.87 - $15.67

Q3 2024

Shares 719,217 Value ($000) $9,321 Avg Close $13.36 Range $10.50 - $16.74

Q2 2024

Shares 680,987 Value ($000) $8,996 Avg Close $16.71 Range $11.83 - $23.86

Q1 2024

Shares 705,447 Value ($000) $16,620 Avg Close $24.77 Range $21.53 - $29.70

Q4 2023

Shares 574,454 Value ($000) $15,706 Avg Close $23.54 Range $19.35 - $28.78

Q3 2023

Shares 385,496 Value ($000) $10,462 Avg Close $24.75 Range $20.57 - $28.77

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	25,542	$166	$8.34	$6.16 - $12.41
Q4 2024	278,395	$2,959	$12.16	$9.87 - $15.67
Q3 2024	719,217	$9,321	$13.36	$10.50 - $16.74
Q2 2024	680,987	$8,996	$16.71	$11.83 - $23.86
Q1 2024	705,447	$16,620	$24.77	$21.53 - $29.70
Q4 2023	574,454	$15,706	$23.54	$19.35 - $28.78
Q3 2023	385,496	$10,462	$24.75	$20.57 - $28.77