REDWOOD SHORES, Calif.--(BUSINESS WIRE)--Imperva, Inc. (NYSE: IMPV), committed to protecting business-critical data and applications on-premises and in the cloud, today announced scheduled participation at the following upcoming investor conferences: 2015 Stephens Spring Investment Conference in New York, NY – Anthony Bettencourt, President and CEO and Terry Schmid, CFO to present on Tuesday, June 2, 2015 at 9:00 a.m. Eastern Time (6:00 a.m. Pacific Time) William Blair Growth Stock Conference i