ACHN
  
  
      
        Achillion Pharmaceuticals
      
      
        
          ACHN
        
        
      
    
  
          ACHN
        
        
      Delisted
    ACHN was delisted on the 27th of January, 2020.
121 hedge funds and large institutions have $164M invested in Achillion Pharmaceuticals in 2018 Q4 according to their latest regulatory filings, with 11 funds opening new positions, 40 increasing their positions, 40 reducing their positions, and 27 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more call options, than puts
Call options by funds: $ | Put options by funds: $
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
less funds holding
Funds holding: →
less funds holding in top 10
Funds holding in top 10: →
58% less capital invested
Capital invested by funds: $394M → $164M (-$230M)
59% less first-time investments, than exits
New positions opened: 11 | Existing positions closed: 27
    
      Holders
    
  
  
    
      
        
      
        121
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        1
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $1.17M
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $171K
      
    
      
    
  
Top Buyers
| 1 | +$5.16M | |
| 2 | +$3.66M | |
| 3 | +$2.09M | |
| 4 | 
      Citadel Advisors
     
      
        Miami,
      
      
        Florida
      
     | +$2.09M | 
| 5 | 
      Two Sigma Investments
     
      
      
        New York
      
     | +$1.79M | 
Top Sellers
| 1 | -$16.5M | |
| 2 | -$5.83M | |
| 3 | -$5.76M | |
| 4 | 
      Vanguard Group
     
      
        Malvern,
      
      
        Pennsylvania
      
     | -$4.92M | 
| 5 | 
    BB
   
      BB Biotech
     
      
        Schaffhausen,
      
      
        Switzerland
      
     | -$4.71M |