WALT DAVID R - Insider Non-Derivative Transactions at Quanterix Corp (QTRX) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Oct 1, 2025, WALT DAVID R's relationship to Quanterix Corp (QTRX) is Director, and currently has 1,871,675 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other QTRX insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

WALT DAVID R - Insider Non-Derivative Transactions of QTRX Common Stock

WALT DAVID R - Insider Non-Derivative Transactions at QTRX

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Oct 2, 2025	Acquisition -- (Common Stock)	2594	5.54	1871675
Jul 2, 2025	Acquisition -- (Common Stock)	2148	6.69	1869081
Jun 14, 2025	P -- (Common Stock)	123990	6.14	1866933
Jun 13, 2025	P -- (Common Stock)	36010	6.23	1742943
Jun 10, 2025	P -- (Common Stock)	78131	5.34	1706933
Jun 7, 2025	P -- (Common Stock)	131869	5.43	1628802
Apr 2, 2025	Acquisition -- (Common Stock)	2156	6.67	1496933
Jan 3, 2025	Acquisition -- (Common Stock)	7435	0	1494777
Aug 21, 2024	P -- (Common Stock)	47000	13.29	1487342
Jan 3, 2024	Acquisition -- (Common Stock)	2947	0	1442342
Mar 10, 2023	G -- (Common Stock)	1000	0	1440342
Jan 4, 2023	Acquisition -- (Common Stock)	8083	0	1439395
Oct 13, 2022	G -- (Common Stock)	1000	0	1441342