HOUSTON--(BUSINESS WIRE)--PROS Holdings, Inc. (NYSE: PRO), a big data software company, today announced that President and Chief Executive Officer Andres Reiner, and Executive Vice President and Chief Financial Officer Stefan Schulz, will present at the William Blair Growth Stock Conference in Chicago on Thursday June 11, 2015, at 8:00 a.m. CDT. The audio presentation will be webcast live and will be available by visiting the “Investor Relations” section of the company’s website at www.pros.com