 Charles Schwab Investment Management Inc. lessened its holdings in shares of Five Prime Therapeutics Inc NASDAQ:FPRX by 2.8 during the 4th quarter, Holdings Channel.com reports. The fund owned 211,854 shares of the biotechnology companys stock after selling 5,992 shares during the period. Charles Schwab Investment Management Inc.s holdings in Five Prime Therapeutics were worth 973,000 ... 