 NEW YORK, Dec. 15, 2020 GLOBE NEWSWIRE -- Bragar Eagel Squire, P.C., a nationally recognized stockholder rights law firm, has launched an investigation into whether the board members of Alexion Pharmaceuticals, Inc. NASDAQ: ALXN breached their fiduciary duties or violated the federal securities laws in connection with the companys acquisition by AstraZeneca PLC NASDAQ: AZN. 