Live feed17:49:33·1549dINSIDERFilingvia QuantisnowSEC Form 4: Buss Brad W bought $279,268 worth of shares (25,000 units at $11.17), increasing direct ownership by 141% to 42,680 unitsByQuantisnow·Wall Street's wire, on your screen.TSP· TuSimple Holdings Inc.IndustrialsOriginal source