Live feed17:00:44·1020dINSIDERFilingvia QuantisnowSEC Form 4: Gregoriou Vassilios sold $7,517 worth of shares (14,157 units at $0.53), decreasing direct ownership by 0.22% to 6,367,669 unitsByQuantisnow·Wall Street's wire, on your screen.ADN· Advent Technologies Holdings Inc.MiscellaneousOriginal source