How investors should play gene-therapy stocks By: MarketWatch September 05, 2017 at 14:36 PM EDT Medical moonshots are successful only after many years of research, so investors need to take a long-term view, says Ethan Lovell. Read More >> Related Stocks: Biogen Idec Biomarin Pharmaceuticals Bluebird Bio Gsk Plc ADR Sangamo Therapeutics Spark Therap Uniqure Ord Shs Voyager Therapeut