Premarket gainers: SRPT +107%. BIOL +14%. GENE +13%. ROYL +9%.  Losers: XRTX -9%. ATRS -7%. RIGL...

|By:, SA News Editor
Premarket gainers: SRPT +107%. BIOL +14%. GENE +13%. ROYL +9%
Losers: XRTX -9%. ATRS -7%. RIGL -6%.