- 
        Signature
      
 
      - 
        /s/ Jennifer Ishiguro, Attorney-in-fact for Thomas Keck
      
 
    
    
      
- 
        Stock symbol
      
 
      - 
        STEP
      
 
    
    
      
- 
        Transactions as of
      
 
      - 
        Feb 14, 2024
      
 
    
    
      
- 
        Transactions value $
      
 
      - 
        $0
      
 
    
    
      
- 
        Form type
      
 
      - 
        4
      
 
    
    
      
- 
        Date filed
      
 
      - 
        2/16/2024, 05:03 PM
      
 
    
    
    
    
   
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | 
          Sym | 
          Class | 
          Transaction | 
          Value $ | 
          Shares | 
          Change % | 
          * Price $ | 
          Shares After | 
          Date | 
          Ownership | 
          Footnotes | 
        
      
      
          
            | transaction | 
            STEP | 
            Class A Common Stock | 
            Award | 
             | 
            +9.52K | 
             | 
             | 
            9.52K | 
            Feb 14, 2024 | 
            Direct | 
            F1 | 
          
          
            | holding | 
            STEP | 
            Class A Common Stock | 
             | 
             | 
             | 
             | 
             | 
            331K | 
            Feb 14, 2024 | 
            By Trust | 
             | 
          
          
            | holding | 
            STEP | 
            Class B Common Stock | 
             | 
             | 
             | 
             | 
             | 
            2.6M | 
            Feb 14, 2024 | 
            By Trust | 
             | 
          
          
            | holding | 
            STEP | 
            Class B Common Stock | 
             | 
             | 
             | 
             | 
             | 
            1.65M | 
            Feb 14, 2024 | 
            By Cresta Capital, LLC | 
             | 
          
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Explanation of Responses:
  
  
  
    Remarks:
  
  Member of 13D Group that owns more than 10%