- 
        Signature
      
- 
        /s/ Jace Knie as Attorney-In-Fact for Joseph Nelson
      
      
- 
        Stock symbol
      
- 
        DATS
      
      
- 
        Transactions as of
      
- 
        Sep 28, 2021
      
      
- 
        Transactions value $
      
- 
        $0
      
      
- 
        Form type
      
- 
        4
      
      
- 
        Date filed
      
- 
        9/30/2021, 04:39 PM
      
 
     
   
 
  
    Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)
  
  
    
      
        
          | Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes | 
      
      
          
            | transaction | DATS | Employee Stock Option (right to buy) | Award | $0 | +25K |  | $0.00 | 25K | Sep 28, 2021 | Common Stock | 25K | $35.00 | Direct | F1 | 
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Explanation of Responses:
  
  
  
    Remarks:
  
  Exhibit List: Exhibit 24 - Power of Attorney