Live feed19:15:35·973dINSIDERFilingvia QuantisnowSEC Form 4: Senkypl Dusan covered exercise/tax liability with 3,851 shares, decreasing direct ownership by 0.86% to 445,261 unitsByQuantisnow·Wall Street's wire, on your screen.GRPN· Groupon Inc.Consumer DiscretionaryOriginal source