NEW YORK (Reuters) - Facebook Inc and its lead underwriters Morgan Stanley , Goldman Sachs Group Inc and JPMorgan Chase & Co have requested that shareholder lawsuits over its $16 billion initial public offering be grouped together in Manhattan federal court. In court papers filed late on Thursday before the U.S. Judicial Panel on Multi-District Litigation, Facebook and the banks said the U.S. District Court in Manhattan was the "most appropriate and convenient forum to oversee these coordinated and/or consolidated proceedings. ...
