ENGLEWOOD, Colo.--(BUSINESS WIRE)--The Western Union Company (NYSE: WU) announced that the company will present at the William Blair & Company’s Growth Stock Conference on June 9, 2015 in Chicago. The presentation will begin at 8:10 a.m. Central Time and will include comments from Raj Agrawal, Executive Vice President and CFO. Investors and interested parties will be able to listen to the investor presentation via webcast from http://www.westernunion.com, under the investor relations sectio