Live feed17:01:32·1396dINSIDERFilingvia QuantisnowSEC Form 4: Gregoriou Vassilios covered exercise/tax liability with 105,122 shares, decreasing direct ownership by 2% to 6,457,502 unitsByQuantisnow·Wall Street's wire, on your screen.ADN· Advent Technologies Holdings Inc.MiscellaneousOriginal source