DW
Insider
David R Walt
DirectorDavid 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.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
+10.7%
avg across 2 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-0.1%
same 2 filings, from disclosure
Filings, ttm
2
2 buys · 0 sells
Median delay
2d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$2.1M
shares × price, as filed
Last traded
Jun 13 2025
Filed Jun 13 2025
Median ADV $2.6M across their filed names
Open performance→Volume by month
Buys $2.1M
Sells $0
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
2 filings
Sector per market data · by filing · past 24 months
Most traded names
QTRXRecent filings
QTRXPURCHASE
Quanterix Corporation
View filing →
$986K160,000 sh across 2 lots
Exec Jun 12 2025
Filed Jun 13 2025 · 5:30 PM ET QTRXPURCHASE Quanterix Corporation View filing → $1.1M
210,000 sh across 2 lots
Exec Jun 6 2025
Filed Jun 9 2025 · 5:30 PM ET QTRXPURCHASE Quanterix Corporation View filing → $625K
47,000 sh × $13.29
Exec Aug 20 2024
Filed Sep 17 2024 · 5:30 PM ET †