Quanterix (QTRX) insider trading in the last 6 months

Form 4 filings, newest first

Quality Score today -7

2 insiders bought $296K. No sales.

BuyWilliam P. Donnelly$212KDirectorat $2.93 on Aug 13, filed Aug 14

BuyWilliam P. DonnellyDirector$212Kat $2.93 on Aug 13, filed Aug 14

BuyWilliam P. Donnelly$75KDirectorat $2.75 on Aug 12, filed Aug 14

BuyWilliam P. DonnellyDirector$75Kat $2.75 on Aug 12, filed Aug 14

BuyBenjamin Meadows$10KChief Commercial Officerat $2.77 on May 12, filed Jun 12

BuyBenjamin MeadowsChief Commercial Officer$10Kat $2.77 on May 12, filed Jun 12

From SEC Form 4s, the newest filed Aug 14, 2026 · Insiders have 2 business days to file a trade

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Who files at Quanterix

Insider trades by person

Cluster buys at QTRX

2 insiders bought QTRX in the last 6 months: William P. Donnelly and Benjamin Meadows.

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Questions about QTRX's insider trades

As of Nov 2, 2026: Quanterix (QTRX) has 3 insider filings on record in the last 6 months, the newest filed Aug 14, 2026. Its Quality Score is -7 (Poor). Scores as of 6:23 PM ET, 15 minutes behind.

Are QTRX insiders buying or selling?

2 insiders bought $296K across 3 filings in the last 6 months. No open-⁠market sales on record. The newest filing: William P. Donnelly, Director, bought $212K on Aug 13, 2026. 2 insiders bought QTRX in the last 6 months: William P. Donnelly and Benjamin Meadows.

Who are QTRX's biggest insider sellers?

No QTRX insider sold shares on the open market in the last 6 months, as filed on Form 4.

When did a QTRX insider last buy?

William P. Donnelly, Director, bought QTRX shares ($212K) on Aug 13, 2026, filed Aug 14, 2026, the newest insider buy on record.

Quanterix's page has its Quality Score, its chart, and its earnings. More in Healthcare and Laboratory Analytical Instruments.