 Shares of BioCryst Pharmaceuticals, Inc. NASDAQ:BCRX gapped up prior to trading on Thursday . The stock had previously closed at 3.56, but opened at 3.70. BioCryst Pharmaceuticals shares last traded at 3.91, with a volume of 16,163,521 shares trading hands. Several equities analysts recently commented on BCRX shares. Zacks Investment Research raised shares of BioCryst ... 