Live feed16:58:35·1887dINSIDERFilingvia QuantisnowSEC Form 4: Epstein David R exercised 1,535 units of Common Stock at a strike of $0.00, increasing direct ownership by 1% to 119,638 unitsByQuantisnow·Wall Street's wire, on your screen.AXLA· Axcella Health Inc.Health CareOriginal source