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        Signature
      
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        /s/ Michelle Webb, Attorney-in-Fact
      
      
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        Stock symbol
      
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        ACVA
      
      
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        Transactions as of
      
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        Oct 15, 2024
      
      
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        Transactions value $
      
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        -$475,175
      
      
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        Form type
      
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        4
      
      
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        Date filed
      
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        10/17/2024, 04:43 PM
      
 
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
      
      
          
            | transaction | ACVA | Class A Common Stock | Options Exercise |  | +25K | +5.1% |  | 515K | Oct 15, 2024 | Direct | F1 | 
          
            | transaction | ACVA | Class A Common Stock | Conversion of derivative security |  | +7.5K | +1.45% |  | 523K | Oct 15, 2024 | Direct | F1 | 
          
            | transaction | ACVA | Class A Common Stock | Sale | -$611K | -32.5K | -6.21% | $18.79 | 490K | Oct 15, 2024 | Direct | F2, F3 | 
      
    
   
  
    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 | ACVA | Employee Stock Option (Right to Buy) | Options Exercise | $0 | -25K | -33.33% | $0.00 | 50K | Oct 15, 2024 | Class B Common Stock | 25K | $5.42 | Direct | F4 | 
          
            | transaction | ACVA | Class B Common Stock | Options Exercise | $136K | +25K | +7.4% | $5.42 | 363K | Oct 15, 2024 | Class A Common Stock | 25K |  | Direct | F1, F5 | 
          
            | transaction | ACVA | Class B Common Stock | Conversion of derivative security | $0 | -25K | -6.89% | $0.00 | 338K | Oct 15, 2024 | Class A Common Stock | 25K |  | Direct | F1, F5 | 
          
            | transaction | ACVA | Class B Common Stock | Conversion of derivative security | $0 | -7.5K | -2.22% | $0.00 | 330K | Oct 15, 2024 | Class A Common Stock | 7.5K |  | Direct | F1, F5 | 
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
  Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
  
    Explanation of Responses: