- 
        Signature
      
 
      - 
        /s/ Rosty Raykov
      
 
    
    
      
- 
        Stock symbol
      
 
      - 
        FENC
      
 
    
    
      
- 
        Transactions as of
      
 
      - 
        Jun 5, 2025
      
 
    
    
      
- 
        Transactions value $
      
 
      - 
        -$77,800
      
 
    
    
      
- 
        Form type
      
 
      - 
        4
      
 
    
    
      
- 
        Date filed
      
 
      - 
        6/6/2025, 04:20 PM
      
 
    
    
    
    
   
     
   
 
  
    Reporting Owners (1)
  
  
    
      
        
          | Name | 
          Relationship | 
          Address | 
          Signature | 
          Signature date | 
          CIK | 
        
      
      
          
            | Raykov Rosty | 
            Director | 
            C/O FENNEC PHARMACEUTICALS, INC., PO BOX 13628, 68 TW ALEXANDER DRIVE, RESEARCH TRIANGLE PARK | 
            /s/ Rosty Raykov | 
            2025-06-06 | 
            0001468316 | 
          
      
    
   
  
    Transactions Table
  
  
    
      
        
          | Type | 
          Sym | 
          Class | 
          Transaction | 
          Value $ | 
          Shares | 
          Change % | 
          * Price $ | 
          Shares After | 
          Date | 
          Ownership | 
          Footnotes | 
        
      
      
          
            | transaction | 
            FENC | 
            Common shares | 
            Sale | 
            -$77.8K | 
            -10K | 
            -13.25% | 
            $7.78 | 
            65.5K | 
            Jun 5, 2025 | 
            Direct | 
            F1 | 
          
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
  Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
  
    Explanation of Responses: