AQR Capital Management LLC reduced its position in Amgen Inc. (NASDAQ:AMGN – Get Rating) by 3.0% during the 4th quarter, HoldingsChannel reports. The institutional investor owned 606,517 shares of the medical research company’s stock after selling 18,991 shares during the period. AQR Capital Management LLC’s holdings in Amgen were worth $158,726,000 at the end of […]