LEXINGTON, Mass.--(BUSINESS WIRE)--Imprivata® (NYSE: IMPR), the healthcare IT security company, today announced that the company will release the results for its fourth quarter and the full year ended December 31, 2014 after the market closes on Wednesday, February 25, 2015. Imprivata will hold a conference call for investors on February 25 at 5:00 p.m. ET during which management will review highlights from the company's fourth quarter and year end 2014 results, its business outlook and other m