- 
        Signature
      
 
      - 
        /s/ Lei Wu
      
 
    
    
      
- 
        Stock symbol
      
 
      - 
        GCT
      
 
    
    
      
- 
        Transactions as of
      
 
      - 
        Apr 29, 2024
      
 
    
    
      
- 
        Transactions value $
      
 
      - 
        -$2,900,705
      
 
    
    
      
- 
        Form type
      
 
      - 
        4
      
 
    
    
      
- 
        Date filed
      
 
      - 
        5/1/2024, 09:40 PM
      
 
    
    
    
    
   
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | 
          Sym | 
          Class | 
          Transaction | 
          Value $ | 
          Shares | 
          Change % | 
          * Price $ | 
          Shares After | 
          Date | 
          Ownership | 
          Footnotes | 
        
      
      
          
            | transaction | 
            GCT | 
            Class A Ordinary Shares, par value $0.05 per share | 
            Sale | 
            -$1.2M | 
            -35.3K | 
            -4.42% | 
            $33.96 | 
            763K | 
            Apr 29, 2024 | 
            By Shan Lao Hu Tong LLC, Ji Xiang Hu Tong Holdings Limited and TALENT BOOM GROUP LIMITED | 
            F1, F2, F3, F4, F5 | 
          
          
            | transaction | 
            GCT | 
            Class A Ordinary Shares, par value $0.05 per share | 
            Sale | 
            -$300K | 
            -8.71K | 
            -1.14% | 
            $34.44 | 
            754K | 
            Apr 29, 2024 | 
            By Shan Lao Hu Tong LLC, Ji Xiang Hu Tong Holdings Limited and TALENT BOOM GROUP LIMITED | 
            F1, F3, F4, F5, F6 | 
          
          
            | transaction | 
            GCT | 
            Class A Ordinary Shares, par value $0.05 per share | 
            Sale | 
            -$1.02M | 
            -32.1K | 
            -4.26% | 
            $31.70 | 
            722K | 
            Apr 30, 2024 | 
            By Shan Lao Hu Tong LLC, Ji Xiang Hu Tong Holdings Limited and TALENT BOOM GROUP LIMITED | 
            F1, F3, F4, F5, F7 | 
          
          
            | transaction | 
            GCT | 
            Class A Ordinary Shares, par value $0.05 per share | 
            Sale | 
            -$331K | 
            -10.3K | 
            -1.43% | 
            $32.19 | 
            711K | 
            Apr 30, 2024 | 
            By Shan Lao Hu Tong LLC, Ji Xiang Hu Tong Holdings Limited and TALENT BOOM GROUP LIMITED | 
            F1, F3, F4, F5, F8 | 
          
          
            | transaction | 
            GCT | 
            Class A Ordinary Shares, par value $0.05 per share | 
            Sale | 
            -$52.1K | 
            -1.57K | 
            -0.22% | 
            $33.26 | 
            710K | 
            Apr 30, 2024 | 
            By Shan Lao Hu Tong LLC, Ji Xiang Hu Tong Holdings Limited and TALENT BOOM GROUP LIMITED | 
            F1, F3, F4, F5, F9 | 
          
      
    
   
  
    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 | 
        
      
      
          
            | holding | 
            GCT | 
            Class B Ordinary Shares, par value $0.05 per share | 
             | 
             | 
             | 
             | 
             | 
            8.08M | 
            Apr 29, 2024 | 
            Class A Ordinary Shares, par value $0.05 per share | 
            8.08M | 
             | 
            By Shan Lao Hu Tong LLC, Ji Xiang Hu Tong Holdings Limited and TALENT BOOM GROUP LIMITED | 
            F3, F5, F10, F11 | 
          
      
    
   
  
    * 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: