Live feed20:21:44·1333dINSIDERFilingvia QuantisnowSEC Form 4: Curtis Michael John converted options into 1,859 shares and covered exercise/tax liability with 922 shares, increasing direct ownership by 6% to 17,329 units (tax liability)ByQuantisnow·Wall Street's wire, on your screen.ZEN· Zendesk Inc.TechnologyOriginal source