Live feed17:02:13·1946dINSIDERFilingvia QuantisnowSEC Form 4: Cal Henderson converted 4,279 units into Class A Common Stock and sold $181,644 worth of Class A Common Stock (4,279 units at $42.45)ByQuantisnow·Wall Street's wire, on your screen.WORK· Slack Technologies, Inc.Consumer ServicesOriginal source