David R Walt bought $1.1M of Quanterix (QTRX)
Executed Jun 6 2025, disclosed Jun 9 2025, 3 days later.
Over the 21 trading sessions from the disclosed entry session (Jun 9 2025), the stock returned +7.7% (delay-adjusted); from the execution session (Jun 6 2025), +29.5%. Derived: entry at the session's open, exit at the close 20 sessions later.
David R Walt (Director) filed 2 Form 4 reports in the past 24 months (2 purchases, 0 sales), most often in Quanterix Corporation (QTRX). Across 2 priced purchase filings, the average 21-session return was +10.7% from execution and -0.1% from disclosure (delay-adjusted; derived). The largest single filing was $1.1M of QTRX (210,000 sh across 2 lots, as filed), executed Jun 6 2025.
Healthcare · Quanterix Corporation, a life sciences company in North America, Europe, the Middle East, Africa, and the Asia Pacific regions
More Healthcare filings→ Insider filings, newest first→ View the original filing at www.sec.gov→160,000 sh across 2 lots
Exec Jun 12 2025
Filed Jun 13 2025 · 5:30 PM ET QTRXPURCHASE Quanterix Corporation $625K
47,000 sh × $13.29
Exec Aug 20 2024
Filed Sep 17 2024 · 5:30 PM ET †