Workday Co-President and Chief Financial Officer Robynne Sisco and Executive Director of Technology Stan Swete to Speak at the 2018 Wells Fargo Tech Summit PLEASANTON, Calif., Nov. 20, 2018 (GLOBE NEWSWIRE) -- Workday, Inc. (NASDAQ:WDAY), a leader in enterprise cloud applications for finance and human resources, today announced that Robynne Sisco,...