| 
                 
                    Closing price on 9/9/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    70.20 | 
                 
                
                    | High | 
                    70.60 | 
                 
                
                    | Low | 
                    70.00 | 
                     
                
                    | Volume | 
                    4,900 | 
                                 
                
                    | Split-adjusted Price | 
                    43.79 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/9/2020
             | 
            
                0.00 / 0.00%
             |             
            
                70.20
             |           
            
                70.60
             |               
            
                70.00
             |                           
            
                70.60
             | 
            
                70.26
             |                     
            
                43.79
             |                                 
            
                4,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2020
             | 
            
                +0.50 / +0.71%
             |             
            
                69.80
             |           
            
                70.60
             |               
            
                69.50
             |                           
            
                70.60
             | 
            
                70.21
             |                     
            
                43.79
             |                                 
            
                14,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/7/2020
             | 
            
                +0.10 / +0.14%
             |             
            
                69.60
             |           
            
                70.50
             |               
            
                69.00
             |                           
            
                70.10
             | 
            
                69.56
             |                     
            
                43.48
             |                                 
            
                14,520
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2020
             | 
            
                -2.00 / -2.78%
             |             
            
                71.00
             |           
            
                72.90
             |               
            
                70.00
             |                           
            
                70.00
             | 
            
                70.94
             |                     
            
                43.41
             |                                 
            
                10,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2020
             | 
            
                +1.10 / +1.55%
             |             
            
                70.50
             |           
            
                72.00
             |               
            
                70.50
             |                           
            
                72.00
             | 
            
                71.09
             |                     
            
                44.66
             |                                 
            
                18,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/1/2020
             | 
            
                +2.20 / +3.20%
             |             
            
                69.00
             |           
            
                71.00
             |               
            
                69.00
             |                           
            
                70.90
             | 
            
                70.48
             |                     
            
                43.97
             |                                 
            
                6,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/31/2020
             | 
            
                -0.60 / -0.87%
             |             
            
                68.50
             |           
            
                69.50
             |               
            
                68.30
             |                           
            
                68.70
             | 
            
                68.83
             |                     
            
                42.61
             |                                 
            
                12,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2020
             | 
            
                -2.60 / -3.62%
             |             
            
                71.00
             |           
            
                71.00
             |               
            
                69.30
             |                           
            
                69.30
             | 
            
                70.10
             |                     
            
                42.98
             |                                 
            
                8,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2020
             | 
            
                +0.80 / +1.13%
             |             
            
                69.00
             |           
            
                71.90
             |               
            
                68.20
             |                           
            
                71.90
             | 
            
                69.68
             |                     
            
                44.59
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2020
             | 
            
                +0.10 / +0.14%
             |             
            
                72.00
             |           
            
                75.00
             |               
            
                71.10
             |                           
            
                71.10
             | 
            
                73.43
             |                     
            
                44.10
             |                                 
            
                13,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/25/2020
             | 
            
                +3.00 / +4.41%
             |             
            
                68.00
             |           
            
                71.00
             |               
            
                67.60
             |                           
            
                71.00
             | 
            
                69.33
             |                     
            
                44.04
             |                                 
            
                23,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/24/2020
             | 
            
                +1.60 / +2.41%
             |             
            
                66.40
             |           
            
                69.00
             |               
            
                66.40
             |                           
            
                68.00
             | 
            
                67.74
             |                     
            
                42.17
             |                                 
            
                22,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2020
             | 
            
                -0.90 / -1.34%
             |             
            
                67.30
             |           
            
                67.30
             |               
            
                66.00
             |                           
            
                66.40
             | 
            
                66.58
             |                     
            
                41.18
             |                                 
            
                10,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2020
             | 
            
                +5.50 / +8.90%
             |             
            
                63.40
             |           
            
                67.40
             |               
            
                63.40
             |                           
            
                67.30
             | 
            
                64.85
             |                     
            
                41.74
             |                                 
            
                23,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2020
             | 
            
                0.00 / 0.00%
             |             
            
                61.50
             |           
            
                61.80
             |               
            
                60.80
             |                           
            
                61.80
             | 
            
                61.60
             |                     
            
                38.33
             |                                 
            
                7,200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/18/2020
             | 
            
                0.00 / 0.00%
             |             
            
                61.80
             |           
            
                61.80
             |               
            
                61.80
             |                           
            
                61.80
             | 
            
                61.80
             |                     
            
                38.33
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/17/2020
             | 
            
                +1.10 / +1.81%
             |             
            
                61.50
             |           
            
                61.80
             |               
            
                61.30
             |                           
            
                61.80
             | 
            
                61.59
             |                     
            
                38.33
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2020
             | 
            
                -1.20 / -1.94%
             |             
            
                61.90
             |           
            
                61.90
             |               
            
                60.70
             |                           
            
                60.70
             | 
            
                61.35
             |                     
            
                37.65
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2020
             | 
            
                -0.10 / -0.16%
             |             
            
                62.00
             |           
            
                62.50
             |               
            
                60.80
             |                           
            
                61.90
             | 
            
                61.69
             |                     
            
                38.39
             |                                 
            
                5,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2020
             | 
            
                +1.50 / +2.48%
             |             
            
                62.00
             |           
            
                62.00
             |               
            
                62.00
             |                           
            
                62.00
             | 
            
                62.00
             |                     
            
                38.45
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/11/2020
             | 
            
                -0.60 / -0.98%
             |             
            
                61.10
             |           
            
                61.10
             |               
            
                60.10
             |                           
            
                60.50
             | 
            
                60.67
             |                     
            
                37.52
             |                                 
            
                2,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/10/2020
             | 
            
                -1.40 / -2.24%
             |             
            
                62.50
             |           
            
                63.70
             |               
            
                61.00
             |                           
            
                61.10
             | 
            
                62.41
             |                     
            
                37.89
             |                                 
            
                9,715
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2020
             | 
            
                +1.50 / +2.46%
             |             
            
                61.20
             |           
            
                63.00
             |               
            
                61.20
             |                           
            
                62.50
             | 
            
                62.16
             |                     
            
                38.76
             |                                 
            
                10,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2020
             | 
            
                +1.00 / +1.67%
             |             
            
                60.00
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                61.00
             | 
            
                60.44
             |                     
            
                37.83
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2020
             | 
            
                0.00 / 0.00%
             |             
            
                61.00
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.39
             |                     
            
                37.21
             |                                 
            
                7,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/4/2020
             | 
            
                0.00 / 0.00%
             |             
            
                60.60
             |           
            
                61.90
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.18
             |                     
            
                37.21
             |                                 
            
                4,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/3/2020
             | 
            
                +5.00 / +9.09%
             |             
            
                56.00
             |           
            
                60.00
             |               
            
                56.00
             |                           
            
                60.00
             | 
            
                58.11
             |                     
            
                37.21
             |                                 
            
                8,700
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2020
             | 
            
                -2.00 / -3.51%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                55.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                34.11
             |                                 
            
                800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2020
             | 
            
                +1.00 / +1.79%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                57.00
             |                           
            
                57.00
             | 
            
                57.00
             |                     
            
                35.35
             |                                 
            
                1,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/29/2020
             | 
            
                -0.50 / -0.88%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                53.50
             |                           
            
                56.00
             | 
            
                55.63
             |                     
            
                34.73
             |                                 
            
                3,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |