Five Prime Therapeutics founder, CEO to step down
Biotech company Five Prime Therapeutics, Inc. , said late Wednesday founder and Chief Executive Lewis T. "Rusty" Williams plans leave his post and become executive chairman of the board by next year. The board "will conduct a comprehensive search for a candidate to fill the CEO position," the company said in a statement. Williams will remain in his current role until a new CEO has been appointed, it said. Williams will also serve as chairman of Five Prime's scientific advisory board. Shares of Five Prime ended the regular session up 7%. Shares were down 1% in late trading.
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