- 
        Signature
      
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        /s/ Thomas C. Dolan
      
      
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        Stock symbol
      
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        SPHR
      
      
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        Transactions as of
      
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        Jun 4, 2025
      
      
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        Transactions value $
      
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        $0
      
      
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        Form type
      
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        4
      
      
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        Date filed
      
- 
        6/6/2025, 04:05 PM
      
 
     
   
 
  
    Reporting Owners (1)
  
  
    
      
        
          | Name | Relationship | Address | Signature | Signature date | CIK | 
      
      
          
            | DOLAN THOMAS CHARLES | Director, Member of 13(d) Group | TWO PENNSYLVANIA PLAZA, NEW YORK | /s/ Thomas C. Dolan | 2025-06-06 | 0000933029 | 
      
    
   
  
    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 | SPHR | Restricted Stock Units | Award | $0 | +4.4K | +18.03% | $0.00 | 28.8K | Jun 4, 2025 | Class A Common Stock | 4.4K |  | Direct | F1, F2 | 
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Explanation of Responses: