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        Signature
      
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        By: /s/ Catherine Grassman For: Mark F. Furlong
      
      
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        Stock symbol
      
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        HSKA
      
      
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        Transactions as of
      
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        Jun 13, 2023
      
      
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        Transactions value $
      
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        -$567,120
      
      
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        Form type
      
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        4
      
      
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        Date filed
      
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        6/14/2023, 06:27 PM
      
 
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
      
      
          
            | transaction | HSKA | Common Stock | Disposed to Issuer | -$567K | -4.73K | -100% | $120.00 | 0 | Jun 13, 2023 | Direct | F1 | 
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  Mark F. Furlong is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.
  
    Explanation of Responses: