iTeos stock jumps 60% after company announces deal with GSK
Shares of iTeos Therapeutics Inc. ITOS, -4.00% soared 58.5% in premarket trading on Monday after the company announced a deal with GlaxoSmithKline GSK, +0.20% to develop and commercialize an experimental cancer therapy. GSK will make a $625 million upfront payment to iTeos, with an additional $1.4 billion in possible milestone payments available in the future.