QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

Post Resch Tallon Group Inc.'s Holding History (CIK: 0002054476)

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

Q4 2025

Shares 11,575 Value ($000) $74 Avg Close $6.21 Range $4.50 - $7.88

Q3 2025

Shares 12,075 Value ($000) $66 Avg Close $5.32 Range $4.15 - $7.09

Q2 2025

Shares 12,175 Value ($000) $81 Avg Close $5.57 Range $4.05 - $7.03

Q1 2025

Shares 12,950 Value ($000) $87 Avg Close $8.34 Range $6.16 - $12.41

Q4 2024

Shares 15,710 Value ($000) $169 Avg Close $12.16 Range $9.87 - $15.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,575	$74	$6.21	$4.50 - $7.88
Q3 2025	12,075	$66	$5.32	$4.15 - $7.09
Q2 2025	12,175	$81	$5.57	$4.05 - $7.03
Q1 2025	12,950	$87	$8.34	$6.16 - $12.41
Q4 2024	15,710	$169	$12.16	$9.87 - $15.67