Shares of Regenxbio (RGNX) have gained 9.3% over the past four weeks to close the last trading session at 8.21,buttherecouldstillbeasolidupsideleftinthestockifshort−termpricetargetsofWallStreetanalystsareanyindication.Goingbythepricetargets,themeanestimateof35.55 indicates a potential upside of 333%.The average comprises 11 short-term price targets ranging from a low of 22toahighof52, with a standard deviation of $10.42. While the lowest estimate indicates an increa ...