YMAB
  
  
      
        Y-mAbs Therapeutics
      
      
        
          YMAB
        
        
      
    
  
          YMAB
        
        
      Delisted
    YMAB was delisted on the 15th of September, 2025.
97 hedge funds and large institutions have $394M invested in Y-mAbs Therapeutics in 2021 Q4 according to their latest regulatory filings, with 16 funds opening new positions, 38 increasing their positions, 28 reducing their positions, and 15 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
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: →
1.25% less ownership
Funds ownership: 60.22% → 58.97% (-1.3%)
45% less capital invested
Capital invested by funds: $716M → $394M (-$322M)
    
      Holders
    
  
  
    
      
        
      
        97
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        2
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        –
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        –
      
    
      
    
  
Top Buyers
| 1 | +$8.5M | |
| 2 | +$4.05M | |
| 3 | +$3.34M | |
| 4 | 
          
   
      State Street
     
    
      
        Boston,
      
      
        Massachusetts
      
     
   | 
        +$2.02M | 
| 5 | 
          
   
      Renaissance Technologies
     
    
      
      
        New York
      
     
   | 
        +$1.6M | 
Top Sellers
| 1 | -$16.5M | |
| 2 | -$9.66M | |
| 3 | -$9.01M | |
| 4 | 
          
   
    BC
   
  
      Brookfield Corp
     
    
      
        Toronto,
      
      
        Ontario, Canada
      
     
   | 
        -$5.12M | 
| 5 | 
          
   
    ACM
   
  
      Ashford Capital Management
     
    
      
        Wilmington,
      
      
        Delaware
      
     
   | 
        -$3.66M |