Alexion Pharmaceuticals Incorporated Positions For  Tudor Investment Corporation
        
        
        
            Change in Position Quarter Over Quarter: 363.02% 
        
        
            Change in Position Year Over Year: 1283.48% 
        
        
     
    
    
            Alexion Pharmaceuticals Incorporated Positions As a Percentage of   Tudor Investment Corporation Portfolio
        
        
            
            Alexion Pharmaceuticals Incorporated as Percentage of Portfolio: 0.0% 
            
        
     
    
    
            Alexion Pharmaceuticals Incorporated Positions Across Investment Managers
        
        (Bubble Size represents the percentage of an investment advisor's portfolio in Alexion Pharmaceuticals Incorporated)