| 
                 
                    Closing price on 11/14/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    41.00 | 
                 
                
                    | High | 
                    41.50 | 
                 
                
                    | Low | 
                    40.50 | 
                     
                
                    | Volume | 
                    4,300 | 
                                 
                
                    | Split-adjusted Price | 
                    25.24 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                11/14/2019
             | 
            
                +0.20 / +0.49%
             |             
            
                41.00
             |           
            
                41.50
             |               
            
                40.50
             |                           
            
                40.70
             | 
            
                40.94
             |                     
            
                25.24
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/13/2019
             | 
            
                +0.60 / +1.50%
             |             
            
                40.70
             |           
            
                40.80
             |               
            
                40.50
             |                           
            
                40.50
             | 
            
                40.66
             |                     
            
                25.12
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/12/2019
             | 
            
                +0.40 / +1.01%
             |             
            
                40.00
             |           
            
                40.00
             |               
            
                39.80
             |                           
            
                39.90
             | 
            
                39.94
             |                     
            
                24.75
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                11/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                39.50
             |           
            
                39.50
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                24.50
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/8/2019
             | 
            
                +0.10 / +0.25%
             |             
            
                39.50
             |           
            
                39.50
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.50
             |                     
            
                24.50
             |                                 
            
                400
             |            
            
                 
             |                                       
         
    
        
            | 
                11/7/2019
             | 
            
                +0.10 / +0.25%
             |             
            
                39.30
             |           
            
                39.40
             |               
            
                39.30
             |                           
            
                39.40
             | 
            
                39.34
             |                     
            
                24.44
             |                                 
            
                1,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                39.40
             |           
            
                39.80
             |               
            
                39.30
             |                           
            
                39.30
             | 
            
                39.46
             |                     
            
                24.37
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                11/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                39.30
             |           
            
                40.40
             |               
            
                39.30
             |                           
            
                39.30
             | 
            
                39.49
             |                     
            
                24.37
             |                                 
            
                2,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                11/4/2019
             | 
            
                -1.10 / -2.72%
             |             
            
                42.60
             |           
            
                42.60
             |               
            
                39.00
             |                           
            
                39.30
             | 
            
                40.07
             |                     
            
                24.37
             |                                 
            
                7,700
             |            
            
                 
             |                                       
         
    
        
            | 
                11/1/2019
             | 
            
                -0.10 / -0.25%
             |             
            
                40.50
             |           
            
                40.50
             |               
            
                39.50
             |                           
            
                40.40
             | 
            
                40.27
             |                     
            
                25.06
             |                                 
            
                6,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/31/2019
             | 
            
                -1.00 / -2.41%
             |             
            
                41.10
             |           
            
                41.30
             |               
            
                40.50
             |                           
            
                40.50
             | 
            
                41.07
             |                     
            
                25.12
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/30/2019
             | 
            
                +0.30 / +0.73%
             |             
            
                41.10
             |           
            
                41.50
             |               
            
                41.10
             |                           
            
                41.50
             | 
            
                41.13
             |                     
            
                25.74
             |                                 
            
                1,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/29/2019
             | 
            
                +0.20 / +0.49%
             |             
            
                41.10
             |           
            
                41.20
             |               
            
                41.00
             |                           
            
                41.20
             | 
            
                41.10
             |                     
            
                25.55
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                10/28/2019
             | 
            
                -0.20 / -0.49%
             |             
            
                41.20
             |           
            
                41.20
             |               
            
                41.00
             |                           
            
                41.00
             | 
            
                41.05
             |                     
            
                25.43
             |                                 
            
                15,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/25/2019
             | 
            
                -0.80 / -1.90%
             |             
            
                43.00
             |           
            
                43.00
             |               
            
                41.20
             |                           
            
                41.20
             | 
            
                42.01
             |                     
            
                25.55
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/24/2019
             | 
            
                -5.90 / -12.32%
             |             
            
                43.00
             |           
            
                43.00
             |               
            
                42.00
             |                           
            
                42.00
             | 
            
                42.85
             |                     
            
                26.05
             |                                 
            
                1,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/23/2019
             | 
            
                -0.50 / -1.03%
             |             
            
                48.40
             |           
            
                48.50
             |               
            
                47.90
             |                           
            
                47.90
             | 
            
                48.24
             |                     
            
                26.61
             |                                 
            
                13,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/22/2019
             | 
            
                -0.60 / -1.22%
             |             
            
                49.00
             |           
            
                49.00
             |               
            
                48.30
             |                           
            
                48.40
             | 
            
                48.59
             |                     
            
                26.88
             |                                 
            
                9,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/21/2019
             | 
            
                +1.40 / +2.94%
             |             
            
                47.80
             |           
            
                49.00
             |               
            
                47.70
             |                           
            
                49.00
             | 
            
                48.43
             |                     
            
                27.22
             |                                 
            
                17,000
             |            
            
                 
             |                                       
         
    
        
            | 
                10/18/2019
             | 
            
                -0.30 / -0.63%
             |             
            
                47.90
             |           
            
                48.00
             |               
            
                47.40
             |                           
            
                47.60
             | 
            
                47.70
             |                     
            
                26.44
             |                                 
            
                8,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/17/2019
             | 
            
                +0.20 / +0.42%
             |             
            
                47.80
             |           
            
                47.90
             |               
            
                47.60
             |                           
            
                47.90
             | 
            
                47.72
             |                     
            
                26.61
             |                                 
            
                11,600
             |            
            
                 
             |                                       
         
    
        
            | 
                10/16/2019
             | 
            
                -0.80 / -1.65%
             |             
            
                49.00
             |           
            
                49.00
             |               
            
                47.70
             |                           
            
                47.70
             | 
            
                48.02
             |                     
            
                26.50
             |                                 
            
                17,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/15/2019
             | 
            
                +1.00 / +2.11%
             |             
            
                47.50
             |           
            
                48.80
             |               
            
                47.50
             |                           
            
                48.50
             | 
            
                48.08
             |                     
            
                26.94
             |                                 
            
                11,400
             |            
            
                 
             |                                       
         
    
        
            | 
                10/14/2019
             | 
            
                +0.40 / +0.85%
             |             
            
                48.30
             |           
            
                50.80
             |               
            
                47.50
             |                           
            
                47.50
             | 
            
                48.51
             |                     
            
                26.38
             |                                 
            
                14,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/11/2019
             | 
            
                +3.00 / +6.80%
             |             
            
                44.20
             |           
            
                48.50
             |               
            
                44.20
             |                           
            
                47.10
             | 
            
                46.71
             |                     
            
                26.16
             |                                 
            
                62,180
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2019
             | 
            
                +0.50 / +1.15%
             |             
            
                44.00
             |           
            
                44.50
             |               
            
                44.00
             |                           
            
                44.10
             | 
            
                44.18
             |                     
            
                24.50
             |                                 
            
                8,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2019
             | 
            
                -0.60 / -1.36%
             |             
            
                44.40
             |           
            
                44.40
             |               
            
                43.60
             |                           
            
                43.60
             | 
            
                43.97
             |                     
            
                24.22
             |                                 
            
                10,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2019
             | 
            
                +2.60 / +6.25%
             |             
            
                43.20
             |           
            
                44.20
             |               
            
                42.20
             |                           
            
                44.20
             | 
            
                43.68
             |                     
            
                24.55
             |                                 
            
                14,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2019
             | 
            
                +0.10 / +0.24%
             |             
            
                41.50
             |           
            
                42.10
             |               
            
                41.50
             |                           
            
                41.60
             | 
            
                41.60
             |                     
            
                23.11
             |                                 
            
                3,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/4/2019
             | 
            
                +0.80 / +1.97%
             |             
            
                40.70
             |           
            
                41.50
             |               
            
                40.50
             |                           
            
                41.50
             | 
            
                40.71
             |                     
            
                23.05
             |                                 
            
                9,900
             |  
            
                 
             |                                                              
             
    
         
    
    
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