ACHN
  
  
      
        Achillion Pharmaceuticals
      
      
        
          ACHN
        
        
      
    
  
          ACHN
        
        
      Delisted
    ACHN was delisted on the 27th of January, 2020.
132 hedge funds and large institutions have $755M invested in Achillion Pharmaceuticals in 2019 Q4 according to their latest regulatory filings, with 42 funds opening new positions, 32 increasing their positions, 43 reducing their positions, and 31 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more capital invested
Capital invested by funds: $ → $
more first-time investments, than exits
New positions opened: | Existing positions closed:
more funds holding
Funds holding: →
more funds holding in top 10
Funds holding in top 10: →
26% less repeat investments, than reductions
Existing positions increased: 32 | Existing positions reduced: 43
62% less call options, than puts
Call options by funds: $30M | Put options by funds: $78.5M
    
      Holders
    
  
  
    
      
        
      
        132
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        1
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $30M
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $78.5M
      
    
      
    
  
Top Buyers
| 1 | +$45.3M | |
| 2 | +$45.3M | |
| 3 | +$33.1M | |
| 4 | 
    AA
   
      AQR Arbitrage
     
      
        Greenwich,
      
      
        Connecticut
      
     | +$19.1M | 
| 5 | 
    WMSA
   
      Weiss Multi-Strategy Advisers
     
      
      
        New York
      
     | +$17.2M | 
Top Sellers
| 1 | -$39.5M | |
| 2 | -$18.9M | |
| 3 | -$16.5M | |
| 4 | 
      UBS Group
     
      
        Zurich,
      
      
        Switzerland
      
     | -$12.5M | 
| 5 | 
      Nuveen Asset Management
     
      
        Chicago,
      
      
        Illinois
      
     | -$11.1M |