Medtronic‘s (NYSE:MDT) diabetes unit, MiniMed Group, filed for a U.S. initial public offering (IPO) on Friday, as part of its separation from the medical devices maker. The Northridge, California-based company reported a net loss of $21 million on net sales of$1.48 billion in the six months ended October 24, compared with a net loss of $23 million on net sales of$1.3 billion a year earlier, according to a regulatory filing with the U.S. Securities and Exchange Commission (SEC). Medtronic To Retain Majorit ...