| 
                 
                    Closing price on 3/20/2020
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    42.60 | 
                 
                
                    | High | 
                    44.90 | 
                 
                
                    | Low | 
                    42.60 | 
                     
                
                    | Volume | 
                    1,000 | 
                                 
                
                    | Split-adjusted Price | 
                    26.73 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                3/20/2020
             | 
            
                -1.00 / -2.27%
             |             
            
                42.60
             |           
            
                44.90
             |               
            
                42.60
             |                           
            
                43.10
             | 
            
                43.28
             |                     
            
                26.73
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2020
             | 
            
                +0.60 / +1.38%
             |             
            
                43.60
             |           
            
                44.10
             |               
            
                43.60
             |                           
            
                44.10
             | 
            
                43.64
             |                     
            
                27.35
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2020
             | 
            
                -2.10 / -4.61%
             |             
            
                46.00
             |           
            
                48.00
             |               
            
                43.50
             |                           
            
                43.50
             | 
            
                45.34
             |                     
            
                26.98
             |                                 
            
                5,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2020
             | 
            
                -1.40 / -2.98%
             |             
            
                46.00
             |           
            
                46.00
             |               
            
                43.40
             |                           
            
                45.60
             | 
            
                45.38
             |                     
            
                28.28
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2020
             | 
            
                +3.10 / +7.06%
             |             
            
                48.20
             |           
            
                48.20
             |               
            
                45.90
             |                           
            
                47.00
             | 
            
                46.31
             |                     
            
                29.15
             |                                 
            
                1,505
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2020
             | 
            
                +1.40 / +3.29%
             |             
            
                42.50
             |           
            
                43.90
             |               
            
                42.30
             |                           
            
                43.90
             | 
            
                42.54
             |                     
            
                27.23
             |                                 
            
                11,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2020
             | 
            
                -3.30 / -7.21%
             |             
            
                45.70
             |           
            
                45.70
             |               
            
                42.20
             |                           
            
                42.50
             | 
            
                44.61
             |                     
            
                26.36
             |                                 
            
                16,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2020
             | 
            
                -1.20 / -2.55%
             |             
            
                47.30
             |           
            
                47.30
             |               
            
                45.70
             |                           
            
                45.80
             | 
            
                46.56
             |                     
            
                28.41
             |                                 
            
                15,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2020
             | 
            
                -3.90 / -7.66%
             |             
            
                45.90
             |           
            
                51.00
             |               
            
                45.90
             |                           
            
                47.00
             | 
            
                48.01
             |                     
            
                29.15
             |                                 
            
                11,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2020
             | 
            
                -5.60 / -9.91%
             |             
            
                54.80
             |           
            
                54.80
             |               
            
                50.90
             |                           
            
                50.90
             | 
            
                52.15
             |                     
            
                31.57
             |                                 
            
                12,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2020
             | 
            
                +0.10 / +0.18%
             |             
            
                58.80
             |           
            
                58.80
             |               
            
                54.80
             |                           
            
                56.50
             | 
            
                55.15
             |                     
            
                35.04
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2020
             | 
            
                +1.30 / +2.36%
             |             
            
                54.80
             |           
            
                56.40
             |               
            
                54.60
             |                           
            
                56.40
             | 
            
                54.97
             |                     
            
                34.98
             |                                 
            
                2,605
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2020
             | 
            
                +0.70 / +1.29%
             |             
            
                54.40
             |           
            
                55.10
             |               
            
                54.40
             |                           
            
                55.10
             | 
            
                54.50
             |                     
            
                34.17
             |                                 
            
                13,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2020
             | 
            
                -3.60 / -6.21%
             |             
            
                57.00
             |           
            
                59.30
             |               
            
                54.40
             |                           
            
                54.40
             | 
            
                56.84
             |                     
            
                33.74
             |                                 
            
                33,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2020
             | 
            
                -4.00 / -6.45%
             |             
            
                61.00
             |           
            
                62.50
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                60.23
             |                     
            
                35.97
             |                                 
            
                8,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/28/2020
             | 
            
                -2.00 / -3.13%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                58.40
             |                           
            
                62.00
             | 
            
                61.42
             |                     
            
                38.45
             |                                 
            
                21,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/27/2020
             | 
            
                0.00 / 0.00%
             |             
            
                63.10
             |           
            
                65.50
             |               
            
                61.60
             |                           
            
                64.00
             | 
            
                63.53
             |                     
            
                39.69
             |                                 
            
                18,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/26/2020
             | 
            
                -1.00 / -1.54%
             |             
            
                65.00
             |           
            
                65.00
             |               
            
                63.00
             |                           
            
                64.00
             | 
            
                63.84
             |                     
            
                39.69
             |                                 
            
                9,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/25/2020
             | 
            
                +1.40 / +2.20%
             |             
            
                63.70
             |           
            
                66.00
             |               
            
                63.40
             |                           
            
                65.00
             | 
            
                64.66
             |                     
            
                40.31
             |                                 
            
                13,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/24/2020
             | 
            
                +1.10 / +1.76%
             |             
            
                62.50
             |           
            
                66.80
             |               
            
                60.00
             |                           
            
                63.60
             | 
            
                64.23
             |                     
            
                39.45
             |                                 
            
                25,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/21/2020
             | 
            
                -1.50 / -2.34%
             |             
            
                64.00
             |           
            
                65.50
             |               
            
                62.50
             |                           
            
                62.50
             | 
            
                63.94
             |                     
            
                38.76
             |                                 
            
                14,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/20/2020
             | 
            
                +4.10 / +6.84%
             |             
            
                61.00
             |           
            
                65.80
             |               
            
                60.00
             |                           
            
                64.00
             | 
            
                63.72
             |                     
            
                39.69
             |                                 
            
                33,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/19/2020
             | 
            
                +5.40 / +9.91%
             |             
            
                56.00
             |           
            
                59.90
             |               
            
                55.00
             |                           
            
                59.90
             | 
            
                58.92
             |                     
            
                37.15
             |                                 
            
                16,500
             |            
            
                 
             |                                       
         
    
        
            | 
                2/18/2020
             | 
            
                -0.50 / -0.91%
             |             
            
                53.10
             |           
            
                55.00
             |               
            
                52.00
             |                           
            
                54.50
             | 
            
                53.05
             |                     
            
                33.80
             |                                 
            
                17,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/17/2020
             | 
            
                0.00 / 0.00%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                52.00
             |                           
            
                55.00
             | 
            
                53.58
             |                     
            
                34.11
             |                                 
            
                16,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/14/2020
             | 
            
                +2.00 / +3.77%
             |             
            
                56.00
             |           
            
                57.00
             |               
            
                53.00
             |                           
            
                55.00
             | 
            
                54.98
             |                     
            
                34.11
             |                                 
            
                14,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2020
             | 
            
                +4.80 / +9.96%
             |             
            
                51.00
             |           
            
                53.00
             |               
            
                50.00
             |                           
            
                53.00
             | 
            
                52.65
             |                     
            
                32.87
             |                                 
            
                32,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2020
             | 
            
                +4.30 / +9.79%
             |             
            
                45.00
             |           
            
                48.20
             |               
            
                45.00
             |                           
            
                48.20
             | 
            
                47.29
             |                     
            
                29.89
             |                                 
            
                20,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/11/2020
             | 
            
                +0.10 / +0.23%
             |             
            
                44.00
             |           
            
                44.00
             |               
            
                43.90
             |                           
            
                43.90
             | 
            
                43.96
             |                     
            
                27.23
             |                                 
            
                1,700
             |            
            
                 
             |                                       
         
    
        
            | 
                2/10/2020
             | 
            
                +2.20 / +5.29%
             |             
            
                42.00
             |           
            
                45.50
             |               
            
                42.00
             |                           
            
                43.80
             | 
            
                42.82
             |                     
            
                27.17
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |