YMAB
  
  
      
        Y-mAbs Therapeutics
      
      
        
          YMAB
        
        
      
    
  
          YMAB
        
        
      Delisted
    YMAB was delisted on the 15th of September, 2025.
106 hedge funds and large institutions have $819M invested in Y-mAbs Therapeutics in 2020 Q3 according to their latest regulatory filings, with 10 funds opening new positions, 42 increasing their positions, 38 reducing their positions, and 13 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more ownership
Funds ownership: →
less funds holding
Funds holding: →
less capital invested
Capital invested by funds: $ → $
23% less first-time investments, than exits
New positions opened: 10 | Existing positions closed: 13
50% less funds holding in top 10
Funds holding in top 10: 4 → 2 (-2)
    
      Holders
    
  
  
    
      
        
      
        106
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        2
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        –
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        –
      
    
      
    
  
Top Buyers
| 1 | +$12.6M | |
| 2 | +$5.61M | |
| 3 | +$4.39M | |
| 4 | 
          
   
      Artisan Partners
     
    
      
        Milwaukee,
      
      
        Wisconsin
      
     
   | 
        +$3.81M | 
| 5 | 
          
   
      State Street
     
    
      
        Boston,
      
      
        Massachusetts
      
     
   | 
        +$3.62M | 
Top Sellers
| 1 | -$15.4M | |
| 2 | -$7.53M | |
| 3 | -$6.79M | |
| 4 | 
          
   
      Invesco
     
    
      
        Atlanta,
      
      
        Georgia
      
     
   | 
        -$3.67M | 
| 5 | 
          
   
      Two Sigma Investments
     
    
      
      
        New York
      
     
   | 
        -$2.12M |