| 
                 
                    Closing price on 2/2/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    78.50 | 
                 
                
                    | High | 
                    89.80 | 
                 
                
                    | Low | 
                    78.50 | 
                     
                
                    | Volume | 
                    14,700 | 
                                 
                
                    | Split-adjusted Price | 
                    61.19 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/2/2021
             | 
            
                +8.00 / +9.78%
             |             
            
                78.50
             |           
            
                89.80
             |               
            
                78.50
             |                           
            
                89.80
             | 
            
                86.29
             |                     
            
                61.19
             |                                 
            
                14,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/1/2021
             | 
            
                +0.10 / +0.12%
             |             
            
                81.50
             |           
            
                81.80
             |               
            
                80.00
             |                           
            
                81.80
             | 
            
                81.31
             |                     
            
                55.74
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2021
             | 
            
                +7.40 / +9.96%
             |             
            
                69.00
             |           
            
                81.70
             |               
            
                69.00
             |                           
            
                81.70
             | 
            
                77.69
             |                     
            
                55.67
             |                                 
            
                16,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2021
             | 
            
                -8.20 / -9.94%
             |             
            
                78.10
             |           
            
                78.50
             |               
            
                74.30
             |                           
            
                74.30
             | 
            
                76.32
             |                     
            
                50.62
             |                                 
            
                29,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/27/2021
             | 
            
                -2.50 / -2.94%
             |             
            
                84.60
             |           
            
                84.80
             |               
            
                81.00
             |                           
            
                82.50
             | 
            
                82.40
             |                     
            
                56.21
             |                                 
            
                12,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/26/2021
             | 
            
                +0.90 / +1.07%
             |             
            
                84.10
             |           
            
                85.00
             |               
            
                82.10
             |                           
            
                85.00
             | 
            
                84.23
             |                     
            
                57.92
             |                                 
            
                15,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2021
             | 
            
                -2.90 / -3.33%
             |             
            
                82.00
             |           
            
                85.60
             |               
            
                80.80
             |                           
            
                84.10
             | 
            
                83.83
             |                     
            
                57.30
             |                                 
            
                2,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2021
             | 
            
                -4.00 / -4.40%
             |             
            
                87.50
             |           
            
                87.50
             |               
            
                85.00
             |                           
            
                87.00
             | 
            
                85.18
             |                     
            
                59.28
             |                                 
            
                26,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2021
             | 
            
                +7.00 / +8.33%
             |             
            
                84.00
             |           
            
                91.00
             |               
            
                83.00
             |                           
            
                91.00
             | 
            
                85.08
             |                     
            
                62.00
             |                                 
            
                21,700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/20/2021
             | 
            
                -0.50 / -0.59%
             |             
            
                84.50
             |           
            
                84.50
             |               
            
                79.00
             |                           
            
                84.00
             | 
            
                82.23
             |                     
            
                57.23
             |                                 
            
                9,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/19/2021
             | 
            
                -6.00 / -6.63%
             |             
            
                87.10
             |           
            
                87.10
             |               
            
                81.50
             |                           
            
                84.50
             | 
            
                83.37
             |                     
            
                57.57
             |                                 
            
                33,007
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2021
             | 
            
                +4.60 / +5.36%
             |             
            
                86.20
             |           
            
                91.50
             |               
            
                85.90
             |                           
            
                90.50
             | 
            
                89.40
             |                     
            
                61.66
             |                                 
            
                30,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2021
             | 
            
                +6.90 / +8.73%
             |             
            
                80.00
             |           
            
                86.80
             |               
            
                80.00
             |                           
            
                85.90
             | 
            
                84.57
             |                     
            
                58.53
             |                                 
            
                21,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2021
             | 
            
                -0.30 / -0.38%
             |             
            
                79.00
             |           
            
                79.00
             |               
            
                77.80
             |                           
            
                79.00
             | 
            
                78.66
             |                     
            
                53.83
             |                                 
            
                19,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/13/2021
             | 
            
                -1.10 / -1.37%
             |             
            
                80.40
             |           
            
                80.50
             |               
            
                79.00
             |                           
            
                79.30
             | 
            
                79.52
             |                     
            
                54.03
             |                                 
            
                9,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/12/2021
             | 
            
                +0.40 / +0.50%
             |             
            
                80.00
             |           
            
                81.00
             |               
            
                79.50
             |                           
            
                80.40
             | 
            
                80.04
             |                     
            
                54.78
             |                                 
            
                18,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2021
             | 
            
                +2.50 / +3.23%
             |             
            
                77.40
             |           
            
                80.10
             |               
            
                77.40
             |                           
            
                80.00
             | 
            
                79.01
             |                     
            
                54.51
             |                                 
            
                29,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2021
             | 
            
                -0.20 / -0.26%
             |             
            
                77.00
             |           
            
                79.00
             |               
            
                76.50
             |                           
            
                77.50
             | 
            
                77.16
             |                     
            
                52.81
             |                                 
            
                41,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2021
             | 
            
                +1.70 / +2.24%
             |             
            
                76.00
             |           
            
                77.70
             |               
            
                76.00
             |                           
            
                77.70
             | 
            
                76.77
             |                     
            
                52.94
             |                                 
            
                10,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/6/2021
             | 
            
                +2.90 / +3.97%
             |             
            
                73.30
             |           
            
                76.00
             |               
            
                73.30
             |                           
            
                76.00
             | 
            
                74.77
             |                     
            
                51.78
             |                                 
            
                27,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/5/2021
             | 
            
                +0.70 / +0.97%
             |             
            
                72.40
             |           
            
                75.00
             |               
            
                72.40
             |                           
            
                73.10
             | 
            
                73.93
             |                     
            
                49.81
             |                                 
            
                22,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2021
             | 
            
                +0.60 / +0.84%
             |             
            
                72.00
             |           
            
                73.20
             |               
            
                71.50
             |                           
            
                72.40
             | 
            
                72.38
             |                     
            
                49.33
             |                                 
            
                11,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/31/2020
             | 
            
                +1.30 / +1.84%
             |             
            
                70.40
             |           
            
                71.80
             |               
            
                70.40
             |                           
            
                71.80
             | 
            
                71.56
             |                     
            
                48.92
             |                                 
            
                11,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/30/2020
             | 
            
                -1.30 / -1.81%
             |             
            
                71.30
             |           
            
                71.80
             |               
            
                70.50
             |                           
            
                70.50
             | 
            
                71.02
             |                     
            
                48.04
             |                                 
            
                16,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/29/2020
             | 
            
                -0.20 / -0.28%
             |             
            
                71.30
             |           
            
                71.80
             |               
            
                71.00
             |                           
            
                71.80
             | 
            
                71.18
             |                     
            
                48.92
             |                                 
            
                6,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/28/2020
             | 
            
                -0.40 / -0.55%
             |             
            
                72.00
             |           
            
                72.00
             |               
            
                71.50
             |                           
            
                72.00
             | 
            
                71.65
             |                     
            
                49.06
             |                                 
            
                7,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/25/2020
             | 
            
                +2.40 / +3.43%
             |             
            
                74.30
             |           
            
                74.30
             |               
            
                70.20
             |                           
            
                72.40
             | 
            
                71.35
             |                     
            
                49.33
             |                                 
            
                6,400
             |            
            
                 
             |                                       
         
    
        
            | 
                12/24/2020
             | 
            
                0.00 / 0.00%
             |             
            
                73.00
             |           
            
                75.00
             |               
            
                68.00
             |                           
            
                70.00
             | 
            
                70.34
             |                     
            
                47.70
             |                                 
            
                21,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/23/2020
             | 
            
                +0.30 / +0.43%
             |             
            
                69.70
             |           
            
                72.30
             |               
            
                69.70
             |                           
            
                70.00
             | 
            
                71.05
             |                     
            
                47.70
             |                                 
            
                25,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/22/2020
             | 
            
                +1.20 / +1.75%
             |             
            
                69.50
             |           
            
                69.80
             |               
            
                68.60
             |                           
            
                69.70
             | 
            
                69.32
             |                     
            
                47.49
             |                                 
            
                26,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |