Tech ratings change roundup: SAP, Glu Mobile, Ambarella, Veeco

|About: SAP AG (SAP)|By:, SA News Editor

SAP (SAP +1.1%) has been upgraded to Buy by UBS. The upgrade follows news Bob Calderoni, the head of SAP's cloud services unit and formerly the head of SAP-acquired Ariba, has left the company, along with Ariba's current chief.

Glu Mobile (GLUU +1.7%) has been started at Buy by Roth. Craig-Hallum upgraded shares yesterday.

Ambarella (AMBA -9.1%) has been cut to Hold by Needham.

Veeco (VECO -2.1%) has been cut to Hold by Berenberg a day after rallying sharply.

Guidance Software (GUID +2%) has been upgraded to Buy by Benchmark.

Itron (ITRI -2.6%) has been cut to Hold by Benchmark.