YMAB
  
  
      
        Y-mAbs Therapeutics
      
      
        
          YMAB
        
        
      
    
  
          YMAB
        
        
      Delisted
    YMAB was delisted on the 15th of September, 2025.
105 hedge funds and large institutions have $339M invested in Y-mAbs Therapeutics in 2024 Q3 according to their latest regulatory filings, with 19 funds opening new positions, 38 increasing their positions, 28 reducing their positions, and 9 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more call options, than puts
Call options by funds: $ | Put options by funds: $
more first-time investments, than exits
New positions opened: | Existing positions closed:
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more capital invested
Capital invested by funds: $ → $
11% more funds holding
Funds holding: 95 → 105 (+10)
2.26% more ownership
Funds ownership: 55.49% → 57.75% (+2.3%)
    
      Holders
    
  
  
    
      
        
      
        105
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        1
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $563K
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $5K
      
    
      
    
  
Top Buyers
| 1 | +$10.5M | |
| 2 | +$8.06M | |
| 3 | +$5.33M | |
| 4 | 
          
   
    PBA
   
  
      Paradigm Biocapital Advisors
     
    
      
      
        New York
      
     
   | 
        +$2.84M | 
| 5 | 
          
   
    BFM
   
  
      Boothbay Fund Management
     
    
      
      
        New York
      
     
   | 
        +$2.47M | 
Top Sellers
| 1 | -$3.66M | |
| 2 | -$3.47M | |
| 3 | -$3.26M | |
| 4 | 
          
   
      Acadian Asset Management
     
    
      
        Boston,
      
      
        Massachusetts
      
     
   | 
        -$2.85M | 
| 5 | 
          
   
      D.E. Shaw & Co
     
    
      
      
        New York
      
     
   | 
        -$1.83M |