 Citigroup Inc. reduced its position in Five Prime Therapeutics Inc NASDAQ:FPRX by 80.8 during the 4th quarter, HoldingsChannel.com reports. The firm owned 6,848 shares of the biotechnology companys stock after selling 28,902 shares during the quarter. Citigroup Inc.s holdings in Five Prime Therapeutics were worth 31,000 at the end of the most recent quarter. Other ... 