Alexion lab

Shares of drugmaker Alexion Pharmaceuticals jumped more than 9 percent on Thursday after the company reiterated its 2016 forecast and said an internal investigation ended.

In a Securities and Exchange Commission filing, Alexion said it continues to expect last year's sales to be between $3.05 billion and $3.1 billion, and adjusted earnings per share to be in the range of $4.50 to $4.65 a share.