In the most profitable transaction, the Liangs allegedly traded ahead of a May 2009 announcement by Vanda Pharmaceuticals Inc. that its schizophrenia drug Fanapt had received FDA approval.
Bristol-Myers Squibb ( BMY - news - people ), and Geodon, from Pfizer, both make similar claims, that could lead to "a modest niche" for Fanapt, says John Newcomer, a psychiatrist at Washington University in St.