Live feed16:44:01·1947dINSIDERFilingvia QuantisnowSEC Form 4: Dave Ristow bought $12,501 worth of Common Stock (1,852 units at $6.75), increasing ownership by 3% to 65,079 unitsByQuantisnow·Wall Street's wire, on your screen.QUMU· Qumu CorporationTechnologyOriginal source