An ex-Samsung Electronics manager has testified that he disclosed confidential shipping data for iPad components to investors prior to the device’s release, Businessweek reports. Testifying in the insider-trading trial of Primary Global Research (PGR) exec James Fleishman, Suk-Joo Hwang, who worked for 14 years at Samsung’s U.S. division, told jurors that he had lunch with Fleishman and a hedge fund manager in Mountain View, CA, four months…