Live feed16:45:32·1034dINSIDERFilingvia QuantisnowSEC Form 4: Guerin Mark Patrick covered exercise/tax liability with 1,422 shares and converted options into 4,750 shares, increasing direct ownership by 15% to 25,444 unitsByQuantisnow·Wall Street's wire, on your screen.ONTX· Onconova Therapeutics Inc.Health CareOriginal source