 Dupont Capital Management Corp decreased its holdings in shares of AMAG Pharmaceuticals, Inc. NASDAQ:AMAG by 18.4 in the 2nd quarter, Holdings Channel reports. The institutional investor owned 69,575 shares of the specialty pharmaceutical companys stock after selling 15,735 shares during the period. Dupont Capital Management Corps holdings in AMAG Pharmaceuticals were worth 532,000 at the ... 