| 
                 
                    Closing price on 4/24/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.00 | 
                 
                
                    | High | 
                    17.00 | 
                 
                
                    | Low | 
                    17.00 | 
                     
                
                    | Volume | 
                    10 | 
                                 
                
                    | Split-adjusted Price | 
                    17.00 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/24/2019
             | 
            
                +0.20 / +1.19%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                17.00
             |                           
            
                17.00
             | 
            
                17.00
             |                     
            
                17.00
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2019
             | 
            
                0.00 / 0.00%
             |             
            
                16.80
             |           
            
                16.80
             |               
            
                16.80
             |                           
            
                16.80
             | 
            
                16.80
             |                     
            
                16.80
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2019
             | 
            
                -0.05 / -0.30%
             |             
            
                16.55
             |           
            
                16.80
             |               
            
                15.90
             |                           
            
                16.80
             | 
            
                16.45
             |                     
            
                16.80
             |                                 
            
                2,310
             |            
            
                 
             |                                       
         
    
        
            | 
                4/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                16.85
             |           
            
                16.85
             |               
            
                16.85
             |                           
            
                16.85
             | 
            
                16.85
             |                     
            
                16.85
             |                                 
            
                210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/18/2019
             | 
            
                +0.10 / +0.60%
             |             
            
                16.85
             |           
            
                16.85
             |               
            
                16.85
             |                           
            
                16.85
             | 
            
                16.85
             |                     
            
                16.85
             |                                 
            
                620
             |            
            
                 
             |                                       
         
    
        
            | 
                4/17/2019
             | 
            
                +0.85 / +5.35%
             |             
            
                15.75
             |           
            
                16.90
             |               
            
                15.75
             |                           
            
                16.75
             | 
            
                15.79
             |                     
            
                16.75
             |                                 
            
                1,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/16/2019
             | 
            
                -0.90 / -5.36%
             |             
            
                15.90
             |           
            
                15.90
             |               
            
                15.90
             |                           
            
                15.90
             | 
            
                15.90
             |                     
            
                15.90
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2019
             | 
            
                -0.40 / -2.33%
             |             
            
                17.25
             |           
            
                17.25
             |               
            
                16.05
             |                           
            
                16.80
             | 
            
                16.90
             |                     
            
                16.80
             |                                 
            
                5,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2019
             | 
            
                +0.40 / +2.38%
             |             
            
                16.50
             |           
            
                17.30
             |               
            
                16.50
             |                           
            
                17.20
             | 
            
                16.93
             |                     
            
                17.20
             |                                 
            
                8,330
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2019
             | 
            
                -0.70 / -4.00%
             |             
            
                16.35
             |           
            
                17.70
             |               
            
                16.35
             |                           
            
                16.80
             | 
            
                16.67
             |                     
            
                16.80
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2019
             | 
            
                -0.30 / -1.69%
             |             
            
                16.75
             |           
            
                17.55
             |               
            
                16.75
             |                           
            
                17.50
             | 
            
                17.14
             |                     
            
                17.50
             |                                 
            
                540
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2019
             | 
            
                +1.10 / +6.59%
             |             
            
                17.80
             |           
            
                17.80
             |               
            
                17.80
             |                           
            
                17.80
             | 
            
                17.80
             |                     
            
                17.80
             |                                 
            
                10
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2019
             | 
            
                -0.70 / -4.02%
             |             
            
                16.50
             |           
            
                17.40
             |               
            
                16.50
             |                           
            
                16.70
             | 
            
                17.07
             |                     
            
                16.70
             |                                 
            
                1,230
             |            
            
                 
             |                                       
         
    
        
            | 
                4/4/2019
             | 
            
                0.00 / 0.00%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.40
             |                           
            
                17.40
             | 
            
                17.40
             |                     
            
                17.40
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/3/2019
             | 
            
                0.00 / 0.00%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.40
             |                           
            
                17.40
             | 
            
                17.40
             |                     
            
                17.40
             |                                 
            
                130
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2019
             | 
            
                +0.40 / +2.35%
             |             
            
                17.40
             |           
            
                17.40
             |               
            
                17.30
             |                           
            
                17.40
             | 
            
                17.38
             |                     
            
                17.40
             |                                 
            
                6,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2019
             | 
            
                +0.25 / +1.49%
             |             
            
                17.45
             |           
            
                17.45
             |               
            
                16.65
             |                           
            
                17.00
             | 
            
                17.04
             |                     
            
                17.00
             |                                 
            
                2,230
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2019
             | 
            
                +0.10 / +0.60%
             |             
            
                16.75
             |           
            
                16.75
             |               
            
                16.75
             |                           
            
                16.75
             | 
            
                16.75
             |                     
            
                16.75
             |                                 
            
                30
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2019
             | 
            
                -0.95 / -5.40%
             |             
            
                16.60
             |           
            
                17.55
             |               
            
                16.60
             |                           
            
                16.65
             | 
            
                16.85
             |                     
            
                16.65
             |                                 
            
                40
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2019
             | 
            
                0.00 / 0.00%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.10
             |                           
            
                17.60
             | 
            
                17.49
             |                     
            
                17.60
             |                                 
            
                2,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2019
             | 
            
                -0.10 / -0.56%
             |             
            
                16.65
             |           
            
                17.70
             |               
            
                16.65
             |                           
            
                17.60
             | 
            
                16.67
             |                     
            
                17.60
             |                                 
            
                180
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2019
             | 
            
                +0.10 / +0.57%
             |             
            
                17.70
             |           
            
                17.70
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                17.70
             |                                 
            
                20
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2019
             | 
            
                -0.10 / -0.56%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.60
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                17.60
             |                                 
            
                30
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2019
             | 
            
                0.00 / 0.00%
             |             
            
                17.70
             |           
            
                17.70
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                17.70
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2019
             | 
            
                -0.10 / -0.56%
             |             
            
                17.70
             |           
            
                17.70
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                17.70
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2019
             | 
            
                +0.10 / +0.56%
             |             
            
                17.80
             |           
            
                17.80
             |               
            
                17.80
             |                           
            
                17.80
             | 
            
                17.80
             |                     
            
                17.80
             |                                 
            
                1,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2019
             | 
            
                +0.10 / +0.57%
             |             
            
                17.70
             |           
            
                17.70
             |               
            
                17.70
             |                           
            
                17.70
             | 
            
                17.70
             |                     
            
                17.70
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2019
             | 
            
                -0.10 / -0.56%
             |             
            
                17.30
             |           
            
                17.60
             |               
            
                17.30
             |                           
            
                17.60
             | 
            
                17.39
             |                     
            
                17.60
             |                                 
            
                460
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                17.30
             |           
            
                17.70
             |               
            
                17.30
             |                           
            
                17.70
             | 
            
                17.50
             |                     
            
                17.70
             |                                 
            
                10,350
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2019
             | 
            
                +0.10 / +0.57%
             |             
            
                17.30
             |           
            
                17.70
             |               
            
                17.30
             |                           
            
                17.70
             | 
            
                17.65
             |                     
            
                17.70
             |                                 
            
                680
             |  
            
                 
             |                                                              
             
    
         
    
    
 |