PubMatic
      
      
        
          PUBM
        
        
      
    
  
          PUBM
        
        
      156 hedge funds and large institutions have $238M invested in PubMatic in 2025 Q1 according to their latest regulatory filings, with 37 funds opening new positions, 40 increasing their positions, 53 reducing their positions, and 39 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more call options, than puts
Call options by funds: $ | Put options by funds: $
more funds holding in top 10
Funds holding in top 10: →
less first-time investments, than exits
New positions opened: | Existing positions closed:
less ownership
Funds ownership: →
3% less funds holding
Funds holding: 160 → 156 (-4)
25% less repeat investments, than reductions
Existing positions increased: 40 | Existing positions reduced: 53
38% less capital invested
Capital invested by funds: $386M → $238M (-$148M)
    
      Holders
    
  
  
    
      
        
      
        156
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        1
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $3.74M
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $1.94M
      
    
      
    
  
Top Buyers
| 1 | +$4.57M | |
| 2 | +$3.68M | |
| 3 | +$3.46M | |
| 4 | 
      Pacer Advisors
     
      
        Malvern,
      
      
        Pennsylvania
      
     | +$2.46M | 
| 5 | 
      Wellington Management Group
     
      
        Boston,
      
      
        Massachusetts
      
     | +$1.64M | 
Top Sellers
| 1 | -$7.56M | |
| 2 | -$2.55M | |
| 3 | -$2.49M | |
| 4 | 
      Millennium Management
     
      
      
        New York
      
     | -$2.18M | 
| 5 | 
    EAM
   
      EFG Asset Management
     
      
        Portland,
      
      
        Oregon
      
     | -$1.96M | 
 
 
 
