Shares of Alkermes (ALKS) have gained 11.9% over the past four weeks to close the last trading session at $33.73, but there could still be a solid upside left in the stock if short-term price targets of Wall Street analysts are any indication. Going by the price targets, the mean estimate of $43.56 indicates a potential upside of 29.1%.The average comprises 16 short-term price targets ranging from a low of $30.00 to a high of $58.00, with a standard deviation of $6.17. While the lowest estimate indicates a ...