| 
                 
                    Closing price on 9/11/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    36.50 | 
                 
                
                    | High | 
                    38.10 | 
                 
                
                    | Low | 
                    36.10 | 
                     
                
                    | Volume | 
                    4,000 | 
                                 
                
                    | Split-adjusted Price | 
                    21.16 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SLS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/11/2019
             | 
            
                +1.00 / +2.70%
             |             
            
                36.50
             |           
            
                38.10
             |               
            
                36.10
             |                           
            
                38.10
             | 
            
                36.19
             |                     
            
                21.16
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2019
             | 
            
                -1.00 / -2.62%
             |             
            
                37.10
             |           
            
                37.20
             |               
            
                37.10
             |                           
            
                37.10
             | 
            
                37.14
             |                     
            
                20.61
             |                                 
            
                1,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                38.10
             |           
            
                38.10
             |               
            
                38.10
             |                           
            
                38.10
             | 
            
                38.10
             |                     
            
                21.16
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                9/6/2019
             | 
            
                0.00 / 0.00%
             |             
            
                38.10
             |           
            
                38.10
             |               
            
                38.10
             |                           
            
                38.10
             | 
            
                38.10
             |                     
            
                21.16
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                38.10
             |           
            
                38.10
             |               
            
                38.10
             |                           
            
                38.10
             | 
            
                38.10
             |                     
            
                21.16
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2019
             | 
            
                -0.90 / -2.31%
             |             
            
                37.60
             |           
            
                38.10
             |               
            
                37.60
             |                           
            
                38.10
             | 
            
                37.69
             |                     
            
                21.16
             |                                 
            
                3,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                38.50
             |                           
            
                39.00
             | 
            
                38.55
             |                     
            
                21.66
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2019
             | 
            
                +0.10 / +0.26%
             |             
            
                38.50
             |           
            
                39.00
             |               
            
                38.50
             |                           
            
                39.00
             | 
            
                38.52
             |                     
            
                21.66
             |                                 
            
                5,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2019
             | 
            
                +0.40 / +1.04%
             |             
            
                38.50
             |           
            
                39.00
             |               
            
                38.00
             |                           
            
                38.90
             | 
            
                38.40
             |                     
            
                21.61
             |                                 
            
                14,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2019
             | 
            
                -0.50 / -1.28%
             |             
            
                38.60
             |           
            
                38.60
             |               
            
                38.50
             |                           
            
                38.50
             | 
            
                38.50
             |                     
            
                21.39
             |                                 
            
                2,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2019
             | 
            
                +0.10 / +0.26%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                39.00
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                21.66
             |                                 
            
                1,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2019
             | 
            
                -1.00 / -2.51%
             |             
            
                39.90
             |           
            
                40.00
             |               
            
                38.90
             |                           
            
                38.90
             | 
            
                39.45
             |                     
            
                21.61
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                39.00
             |           
            
                39.90
             |               
            
                39.00
             |                           
            
                39.90
             | 
            
                39.45
             |                     
            
                22.16
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2019
             | 
            
                +0.50 / +1.27%
             |             
            
                41.30
             |           
            
                41.30
             |               
            
                38.50
             |                           
            
                39.90
             | 
            
                39.32
             |                     
            
                22.16
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2019
             | 
            
                -0.40 / -1.01%
             |             
            
                39.60
             |           
            
                39.90
             |               
            
                39.40
             |                           
            
                39.40
             | 
            
                39.49
             |                     
            
                21.89
             |                                 
            
                9,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2019
             | 
            
                +0.50 / +1.27%
             |             
            
                39.40
             |           
            
                39.80
             |               
            
                39.40
             |                           
            
                39.80
             | 
            
                39.44
             |                     
            
                22.11
             |                                 
            
                2,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2019
             | 
            
                -0.90 / -2.24%
             |             
            
                41.20
             |           
            
                41.20
             |               
            
                39.30
             |                           
            
                39.30
             | 
            
                39.73
             |                     
            
                21.83
             |                                 
            
                8,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2019
             | 
            
                +0.10 / +0.25%
             |             
            
                40.20
             |           
            
                40.40
             |               
            
                40.20
             |                           
            
                40.20
             | 
            
                40.31
             |                     
            
                22.33
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                40.10
             |           
            
                41.50
             |               
            
                40.10
             |                           
            
                40.10
             | 
            
                40.21
             |                     
            
                22.27
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2019
             | 
            
                -1.10 / -2.67%
             |             
            
                41.20
             |           
            
                41.20
             |               
            
                40.10
             |                           
            
                40.10
             | 
            
                40.99
             |                     
            
                22.27
             |                                 
            
                5,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2019
             | 
            
                -0.40 / -0.96%
             |             
            
                41.60
             |           
            
                42.50
             |               
            
                41.20
             |                           
            
                41.20
             | 
            
                41.35
             |                     
            
                22.89
             |                                 
            
                7,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2019
             | 
            
                +0.40 / +0.97%
             |             
            
                41.30
             |           
            
                41.60
             |               
            
                41.30
             |                           
            
                41.60
             | 
            
                41.40
             |                     
            
                23.11
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2019
             | 
            
                +0.20 / +0.49%
             |             
            
                41.20
             |           
            
                41.30
             |               
            
                41.00
             |                           
            
                41.20
             | 
            
                41.08
             |                     
            
                22.89
             |                                 
            
                19,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                41.00
             |           
            
                41.50
             |               
            
                40.80
             |                           
            
                41.00
             | 
            
                41.02
             |                     
            
                22.77
             |                                 
            
                10,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2019
             | 
            
                -1.00 / -2.38%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                40.90
             |                           
            
                41.00
             | 
            
                41.13
             |                     
            
                22.77
             |                                 
            
                5,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2019
             | 
            
                +2.20 / +5.53%
             |             
            
                40.00
             |           
            
                43.30
             |               
            
                39.90
             |                           
            
                42.00
             | 
            
                41.10
             |                     
            
                23.33
             |                                 
            
                11,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2019
             | 
            
                +0.30 / +0.76%
             |             
            
                39.70
             |           
            
                40.00
             |               
            
                39.60
             |                           
            
                39.80
             | 
            
                39.76
             |                     
            
                22.11
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2019
             | 
            
                -0.10 / -0.25%
             |             
            
                39.60
             |           
            
                39.60
             |               
            
                39.50
             |                           
            
                39.50
             | 
            
                39.55
             |                     
            
                21.94
             |                                 
            
                2,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2019
             | 
            
                +0.60 / +1.54%
             |             
            
                39.60
             |           
            
                39.60
             |               
            
                39.60
             |                           
            
                39.60
             | 
            
                39.60
             |                     
            
                22.00
             |                                 
            
                1,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2019
             | 
            
                +0.30 / +0.78%
             |             
            
                39.00
             |           
            
                39.00
             |               
            
                39.00
             |                           
            
                39.00
             | 
            
                39.00
             |                     
            
                21.66
             |                                 
            
                700
             |  
            
                 
             |                                                              
             
    
         
    
    
 |