Live feed19:26:45·524dINSIDERFilingvia QuantisnowDirector Protopapas Anna sold $5,009 worth of shares (8,637 units at $0.58) and converted options into 21,250 shares, increasing direct ownership by 8% to 168,041 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MRSN· Mersana Therapeutics Inc.Health CareOriginal source