- 
        Signature
      
- 
        /s/ Van Huynh Attorney-in-Fact for Thomas Caulfield
      
      
- 
        Stock symbol
      
- 
        SNDK
      
      
- 
        Transactions as of
      
- 
        Jan 31, 2025
      
      
- 
        Transactions value $
      
- 
        $0
      
      
- 
        Form type
      
- 
        3
      
      
- 
        Date filed
      
- 
        1/31/2025, 07:36 PM
      
 
     
   
 
  No securities are beneficially owned.
  
    Remarks:
  
  Exhibit List: Exhibit 24 - Power-of-Attorney