YMAB
  
  
      
        Y-mAbs Therapeutics
      
      
        
          YMAB
        
        
      
    
  
          YMAB
        
        
      Delisted
    YMAB was delisted on the 15th of September, 2025.
109 hedge funds and large institutions have $920M invested in Y-mAbs Therapeutics in 2020 Q2 according to their latest regulatory filings, with 33 funds opening new positions, 40 increasing their positions, 29 reducing their positions, and 4 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more first-time investments, than exits
New positions opened: | Existing positions closed:
more capital invested
Capital invested by funds: $ → $
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more funds holding
Funds holding: →
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
3.04% more ownership
Funds ownership: 50.49% → 53.53% (+3%)
    
      Holders
    
  
  
    
      
        
      
        109
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        4
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        –
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        –
      
    
      
    
  
Top Buyers
| 1 | +$26.2M | |
| 2 | +$14.3M | |
| 3 | +$7.22M | |
| 4 | 
          
   
      Vanguard Group
     
    
      
        Malvern,
      
      
        Pennsylvania
      
     
   | 
        +$6.83M | 
| 5 | 
          
   
    PC
   
  
      Polar Capital
     
    
      
        London,
      
      
        United Kingdom
      
     
   | 
        +$5.4M | 
Top Sellers
| 1 | -$18M | |
| 2 | -$7.22M | |
| 3 | -$6.8M | |
| 4 | 
          
   
    DCM
   
  
      Driehaus Capital Management
     
    
      
        Chicago,
      
      
        Illinois
      
     
   | 
        -$4.78M | 
| 5 | 
          
   
    AG
   
  
      Artal Group
     
    
      
      
        Luxembourg
      
     
   | 
        -$4.32M |