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        Signature
      
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        /s/ Alan L. Chan, Attorney-In-Fact for Aina E. Konold
      
      
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        Stock symbol
      
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        NLS
      
      
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        Transactions as of
      
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        May 10, 2022
      
      
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        Transactions value $
      
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        -$54,173
      
      
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        Form type
      
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        4
      
      
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        Date filed
      
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        5/12/2022, 07:56 PM
      
 
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
      
      
          
            | transaction | NLS | Common Stock | Options Exercise |  | +53.3K | +51.4% |  | 157K | May 10, 2022 | Direct | F1 | 
          
            | transaction | NLS | Common Stock | Tax liability | -$54.2K | -20.8K | -13.21% | $2.61 | 136K | May 10, 2022 | Direct | F2 | 
      
    
   
  
    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 | NLS | Restricted Stock Units | Options Exercise | $0 | -53.3K | -50% | $0.00 | 53.3K | May 10, 2022 | Common Stock | 53.3K |  | Direct | F1, F3 | 
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Explanation of Responses:
  
  
  
    Remarks:
  
  Exhibit 24 Power of Attorney