WSJ: Pfizer considering buying Global Blood Therapeutics for roughly $5 billion

Shares of Global Blood Therapeutics Inc. GBT, +36.89% jumped 9.5% in trading on Friday after The Wall Street Journal reported that Pfizer Inc. PFE, -1.34% is considering buying the company for about $5 billion. There were media reports earlier this week that Global Blood Therapeutics, which markets a sickle-cell treatment, is attracting takeover interest. The company’s stock is up 79.6% this year, while the broader S&P 500 SPX, -0.50% is down 12.8%.