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        Signature
      
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        /s/ Melinda Wohl by Power of Attorney
      
      
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        Stock symbol
      
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        DPSI
      
      
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        Transactions as of
      
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        Dec 16, 2022
      
      
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        Transactions value $
      
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        $35,305
      
      
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        Form type
      
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        4
      
      
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        Date filed
      
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        7/17/2023, 02:47 PM
      
 
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
      
      
          
            | transaction | DPSI | Common Stock | Options Exercise | $136K | +41.7K | +7.42% | $3.26 | 603K | Dec 16, 2022 | Direct |  | 
          
            | transaction | DPSI | Common Stock | Tax liability | -$101K | -10.8K | -1.79% | $9.31 | 593K | Dec 16, 2022 | Direct |  | 
      
    
   
  
    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 | DPSI | Stock Option (Right to Buy) | Options Exercise | $0 | -41.7K | -50% | $0.00 | 41.7K | Dec 16, 2022 | Common Stock | 41.7K | $3.26 | Direct |  | 
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Remarks:
  
  Exhibit Index: Exhibit 24 - Power of Attorney