Live feed16:31:10·1857dINSIDERFilingvia QuantisnowSEC Form 4: Epstein David R exercised 1,534 units of Common Stock at a strike of $0.00, increasing direct ownership by 1% to 121,172 unitsByQuantisnow·Wall Street's wire, on your screen.AXLA· Axcella Health Inc.Health CareOriginal source