| 
                 
                    Closing price on 11/23/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    62.50 | 
                 
                
                    | High | 
                    62.50 | 
                 
                
                    | Low | 
                    61.80 | 
                     
                
                    | Volume | 
                    21,200 | 
                                 
                
                    | Split-adjusted Price | 
                    42.52 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/23/2020
             | 
            
                -0.10 / -0.16%
             |             
            
                62.50
             |           
            
                62.50
             |               
            
                61.80
             |                           
            
                62.40
             | 
            
                62.12
             |                     
            
                42.52
             |                                 
            
                21,200
             |            
            
                 
             |                                       
         
    
        
            | 
                11/20/2020
             | 
            
                +0.80 / +1.30%
             |             
            
                61.50
             |           
            
                63.00
             |               
            
                61.10
             |                           
            
                62.50
             | 
            
                62.30
             |                     
            
                42.58
             |                                 
            
                44,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/19/2020
             | 
            
                -0.90 / -1.44%
             |             
            
                62.00
             |           
            
                62.60
             |               
            
                61.50
             |                           
            
                61.70
             | 
            
                61.98
             |                     
            
                42.04
             |                                 
            
                12,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/18/2020
             | 
            
                -0.20 / -0.32%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                59.40
             |                           
            
                62.60
             | 
            
                62.45
             |                     
            
                42.65
             |                                 
            
                9,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/17/2020
             | 
            
                +4.20 / +7.17%
             |             
            
                59.00
             |           
            
                63.00
             |               
            
                59.00
             |                           
            
                62.80
             | 
            
                60.91
             |                     
            
                42.79
             |                                 
            
                54,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/16/2020
             | 
            
                +0.70 / +1.21%
             |             
            
                58.00
             |           
            
                59.00
             |               
            
                58.00
             |                           
            
                58.60
             | 
            
                58.55
             |                     
            
                39.93
             |                                 
            
                43,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/13/2020
             | 
            
                0.00 / 0.00%
             |             
            
                58.00
             |           
            
                58.10
             |               
            
                57.80
             |                           
            
                57.90
             | 
            
                57.93
             |                     
            
                39.45
             |                                 
            
                9,500
             |            
            
                 
             |                                       
         
    
        
            | 
                11/12/2020
             | 
            
                -0.20 / -0.34%
             |             
            
                57.50
             |           
            
                58.10
             |               
            
                57.50
             |                           
            
                57.90
             | 
            
                57.99
             |                     
            
                39.45
             |                                 
            
                7,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/11/2020
             | 
            
                0.00 / 0.00%
             |             
            
                58.10
             |           
            
                58.40
             |               
            
                58.00
             |                           
            
                58.10
             | 
            
                58.18
             |                     
            
                39.59
             |                                 
            
                12,600
             |            
            
                 
             |                                       
         
    
        
            | 
                11/10/2020
             | 
            
                -0.60 / -1.02%
             |             
            
                58.10
             |           
            
                58.20
             |               
            
                57.50
             |                           
            
                58.10
             | 
            
                57.89
             |                     
            
                39.59
             |                                 
            
                14,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/9/2020
             | 
            
                +0.20 / +0.34%
             |             
            
                58.00
             |           
            
                58.80
             |               
            
                58.00
             |                           
            
                58.70
             | 
            
                58.20
             |                     
            
                40.00
             |                                 
            
                11,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/6/2020
             | 
            
                -1.00 / -1.68%
             |             
            
                59.50
             |           
            
                59.60
             |               
            
                57.40
             |                           
            
                58.50
             | 
            
                58.27
             |                     
            
                39.86
             |                                 
            
                10,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/5/2020
             | 
            
                +2.90 / +5.12%
             |             
            
                56.90
             |           
            
                60.40
             |               
            
                56.90
             |                           
            
                59.50
             | 
            
                58.52
             |                     
            
                40.54
             |                                 
            
                37,400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/4/2020
             | 
            
                +0.40 / +0.71%
             |             
            
                56.20
             |           
            
                56.90
             |               
            
                55.50
             |                           
            
                56.60
             | 
            
                56.26
             |                     
            
                38.56
             |                                 
            
                22,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/3/2020
             | 
            
                +1.70 / +3.12%
             |             
            
                54.40
             |           
            
                56.50
             |               
            
                54.40
             |                           
            
                56.20
             | 
            
                55.59
             |                     
            
                38.29
             |                                 
            
                41,800
             |            
            
                 
             |                                       
         
    
        
            | 
                11/2/2020
             | 
            
                +1.00 / +1.87%
             |             
            
                53.50
             |           
            
                54.50
             |               
            
                51.70
             |                           
            
                54.50
             | 
            
                52.31
             |                     
            
                37.13
             |                                 
            
                19,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/30/2020
             | 
            
                -1.50 / -2.73%
             |             
            
                55.00
             |           
            
                55.40
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                54.69
             |                     
            
                36.45
             |                                 
            
                25,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/29/2020
             | 
            
                -1.30 / -2.31%
             |             
            
                55.90
             |           
            
                55.90
             |               
            
                54.50
             |                           
            
                55.00
             | 
            
                54.93
             |                     
            
                37.47
             |                                 
            
                15,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/28/2020
             | 
            
                -1.40 / -2.43%
             |             
            
                57.00
             |           
            
                57.50
             |               
            
                55.80
             |                           
            
                56.30
             | 
            
                56.31
             |                     
            
                38.36
             |                                 
            
                20,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/27/2020
             | 
            
                -1.30 / -2.20%
             |             
            
                58.90
             |           
            
                59.00
             |               
            
                56.20
             |                           
            
                57.70
             | 
            
                56.94
             |                     
            
                39.31
             |                                 
            
                34,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/26/2020
             | 
            
                -1.60 / -2.64%
             |             
            
                60.50
             |           
            
                60.60
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.64
             |                     
            
                40.20
             |                                 
            
                18,200
             |            
            
                 
             |                                       
         
    
        
            | 
                10/23/2020
             | 
            
                -0.60 / -0.98%
             |             
            
                61.20
             |           
            
                61.20
             |               
            
                60.00
             |                           
            
                60.60
             | 
            
                60.38
             |                     
            
                41.29
             |                                 
            
                14,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/22/2020
             | 
            
                -0.80 / -1.29%
             |             
            
                60.50
             |           
            
                62.00
             |               
            
                60.00
             |                           
            
                61.20
             | 
            
                60.48
             |                     
            
                41.70
             |                                 
            
                13,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/21/2020
             | 
            
                -0.10 / -0.16%
             |             
            
                62.00
             |           
            
                62.00
             |               
            
                58.10
             |                           
            
                62.00
             | 
            
                60.37
             |                     
            
                42.24
             |                                 
            
                17,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/20/2020
             | 
            
                -5.20 / -7.73%
             |             
            
                67.30
             |           
            
                67.30
             |               
            
                61.00
             |                           
            
                62.10
             | 
            
                64.04
             |                     
            
                42.31
             |                                 
            
                50,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/19/2020
             | 
            
                -3.70 / -5.21%
             |             
            
                71.10
             |           
            
                71.10
             |               
            
                65.90
             |                           
            
                67.30
             | 
            
                67.83
             |                     
            
                45.86
             |                                 
            
                22,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/16/2020
             | 
            
                +0.90 / +1.17%
             |             
            
                76.00
             |           
            
                78.00
             |               
            
                75.90
             |                           
            
                78.00
             | 
            
                76.29
             |                     
            
                48.38
             |                                 
            
                38,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/15/2020
             | 
            
                -0.90 / -1.15%
             |             
            
                78.00
             |           
            
                78.30
             |               
            
                77.00
             |                           
            
                77.10
             | 
            
                77.71
             |                     
            
                47.82
             |                                 
            
                31,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/14/2020
             | 
            
                -0.40 / -0.51%
             |             
            
                78.30
             |           
            
                78.30
             |               
            
                77.90
             |                           
            
                78.00
             | 
            
                78.02
             |                     
            
                48.38
             |                                 
            
                12,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/13/2020
             | 
            
                +0.10 / +0.13%
             |             
            
                78.20
             |           
            
                78.40
             |               
            
                77.90
             |                           
            
                78.40
             | 
            
                78.08
             |                     
            
                48.62
             |                                 
            
                8,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |