- 
        Signature
      
 
      - 
        /s/ Beth Hecht as Attorney-in-Fact
      
 
    
    
      
- 
        Stock symbol
      
 
      - 
        XERS
      
 
    
    
      
- 
        Transactions as of
      
 
      - 
        Aug 9, 2023
      
 
    
    
      
- 
        Transactions value $
      
 
      - 
        $23,794
      
 
    
    
      
- 
        Form type
      
 
      - 
        4
      
 
    
    
      
- 
        Date filed
      
 
      - 
        8/9/2023, 06:57 PM
      
 
    
    
    
    
   
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | 
          Sym | 
          Class | 
          Transaction | 
          Value $ | 
          Shares | 
          Change % | 
          * Price $ | 
          Shares After | 
          Date | 
          Ownership | 
          Footnotes | 
        
      
      
          
            | transaction | 
            XERS | 
            Common Stock | 
            Purchase | 
            $23.8K | 
            +10K | 
            +0.44% | 
            $2.38 | 
            2.29M | 
            Aug 9, 2023 | 
            Direct | 
            F1 | 
          
          
            | holding | 
            XERS | 
            Common Stock | 
             | 
             | 
             | 
             | 
             | 
            33.4K | 
            Aug 9, 2023 | 
            By: Paul R. Edick 2008 Revocable Trust u/d/t dated 6/25/2018 | 
            F2 | 
          
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Explanation of Responses:
  
  
  
    Remarks:
  
  Chairman and Chief Executive Officer