Live feed17:44:04·381dINSIDERFilingvia QuantisnowDirector Walt David R bought $1,133,796 worth of shares (210,000 units at $5.40), increasing direct ownership by 14% to 1,706,933 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.QTRX· Quanterix CorporationIndustrialsOriginal source