| 
                 
                    Closing price on 4/1/2022
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    31.95 | 
                 
                
                    | High | 
                    31.95 | 
                 
                
                    | Low | 
                    31.30 | 
                     
                
                    | Volume | 
                    11,600 | 
                                 
                
                    | Split-adjusted Price | 
                    31.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/1/2022
             | 
            
                +0.10 / +0.31%
             |             
            
                31.95
             |           
            
                31.95
             |               
            
                31.30
             |                           
            
                31.90
             | 
            
                31.81
             |                     
            
                31.90
             |                                 
            
                11,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2022
             | 
            
                -0.15 / -0.47%
             |             
            
                32.00
             |           
            
                32.00
             |               
            
                31.15
             |                           
            
                31.80
             | 
            
                31.58
             |                     
            
                31.80
             |                                 
            
                5,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2022
             | 
            
                -0.55 / -1.69%
             |             
            
                32.50
             |           
            
                32.50
             |               
            
                30.90
             |                           
            
                31.95
             | 
            
                31.46
             |                     
            
                31.95
             |                                 
            
                19,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2022
             | 
            
                +0.70 / +2.20%
             |             
            
                32.40
             |           
            
                32.50
             |               
            
                31.00
             |                           
            
                32.50
             | 
            
                32.20
             |                     
            
                32.50
             |                                 
            
                24,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2022
             | 
            
                +0.80 / +2.58%
             |             
            
                31.00
             |           
            
                33.00
             |               
            
                31.00
             |                           
            
                31.80
             | 
            
                31.77
             |                     
            
                31.80
             |                                 
            
                34,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2022
             | 
            
                +0.15 / +0.49%
             |             
            
                30.85
             |           
            
                31.50
             |               
            
                30.85
             |                           
            
                31.00
             | 
            
                31.07
             |                     
            
                31.00
             |                                 
            
                9,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2022
             | 
            
                +0.85 / +2.83%
             |             
            
                30.95
             |           
            
                31.00
             |               
            
                30.00
             |                           
            
                30.85
             | 
            
                30.42
             |                     
            
                30.85
             |                                 
            
                16,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2022
             | 
            
                +1.00 / +3.45%
             |             
            
                28.80
             |           
            
                30.00
             |               
            
                28.80
             |                           
            
                30.00
             | 
            
                29.30
             |                     
            
                30.00
             |                                 
            
                22,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2022
             | 
            
                0.00 / 0.00%
             |             
            
                29.20
             |           
            
                29.20
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                29.00
             |                                 
            
                16,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2022
             | 
            
                0.00 / 0.00%
             |             
            
                29.05
             |           
            
                29.20
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.03
             |                     
            
                29.00
             |                                 
            
                7,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2022
             | 
            
                0.00 / 0.00%
             |             
            
                29.00
             |           
            
                29.00
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.00
             |                     
            
                29.00
             |                                 
            
                7,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2022
             | 
            
                0.00 / 0.00%
             |             
            
                29.00
             |           
            
                29.35
             |               
            
                29.00
             |                           
            
                29.00
             | 
            
                29.07
             |                     
            
                29.00
             |                                 
            
                5,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2022
             | 
            
                0.00 / 0.00%
             |             
            
                28.50
             |           
            
                29.00
             |               
            
                28.50
             |                           
            
                29.00
             | 
            
                28.99
             |                     
            
                29.00
             |                                 
            
                4,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2022
             | 
            
                0.00 / 0.00%
             |             
            
                28.00
             |           
            
                29.00
             |               
            
                28.00
             |                           
            
                29.00
             | 
            
                28.50
             |                     
            
                29.00
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2022
             | 
            
                -0.50 / -1.69%
             |             
            
                29.00
             |           
            
                29.40
             |               
            
                28.90
             |                           
            
                29.00
             | 
            
                29.01
             |                     
            
                29.00
             |                                 
            
                2,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2022
             | 
            
                -0.10 / -0.34%
             |             
            
                29.60
             |           
            
                29.60
             |               
            
                29.50
             |                           
            
                29.50
             | 
            
                29.50
             |                     
            
                29.50
             |                                 
            
                16,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2022
             | 
            
                0.00 / 0.00%
             |             
            
                29.60
             |           
            
                30.25
             |               
            
                29.50
             |                           
            
                29.60
             | 
            
                29.65
             |                     
            
                29.60
             |                                 
            
                2,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2022
             | 
            
                -1.25 / -4.05%
             |             
            
                29.30
             |           
            
                29.70
             |               
            
                29.30
             |                           
            
                29.60
             | 
            
                29.52
             |                     
            
                29.60
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2022
             | 
            
                +0.65 / +2.15%
             |             
            
                29.70
             |           
            
                30.85
             |               
            
                29.60
             |                           
            
                30.85
             | 
            
                29.68
             |                     
            
                30.85
             |                                 
            
                31,900
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2022
             | 
            
                -0.60 / -1.95%
             |             
            
                30.75
             |           
            
                30.75
             |               
            
                30.20
             |                           
            
                30.20
             | 
            
                30.23
             |                     
            
                30.20
             |                                 
            
                6,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2022
             | 
            
                +1.50 / +5.12%
             |             
            
                29.80
             |           
            
                30.90
             |               
            
                29.50
             |                           
            
                30.80
             | 
            
                30.09
             |                     
            
                30.80
             |                                 
            
                16,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2022
             | 
            
                +0.40 / +1.38%
             |             
            
                28.80
             |           
            
                29.50
             |               
            
                28.80
             |                           
            
                29.30
             | 
            
                29.30
             |                     
            
                29.30
             |                                 
            
                22,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2022
             | 
            
                -0.10 / -0.34%
             |             
            
                29.00
             |           
            
                29.40
             |               
            
                28.90
             |                           
            
                28.90
             | 
            
                29.05
             |                     
            
                28.90
             |                                 
            
                9,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2022
             | 
            
                +0.30 / +1.05%
             |             
            
                28.60
             |           
            
                29.00
             |               
            
                28.60
             |                           
            
                29.00
             | 
            
                28.71
             |                     
            
                29.00
             |                                 
            
                2,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2022
             | 
            
                0.00 / 0.00%
             |             
            
                29.60
             |           
            
                29.60
             |               
            
                28.70
             |                           
            
                28.70
             | 
            
                28.88
             |                     
            
                28.70
             |                                 
            
                1,300
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2022
             | 
            
                0.00 / 0.00%
             |             
            
                28.20
             |           
            
                28.70
             |               
            
                28.20
             |                           
            
                28.70
             | 
            
                28.61
             |                     
            
                28.70
             |                                 
            
                10,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2022
             | 
            
                -0.25 / -0.86%
             |             
            
                28.75
             |           
            
                30.30
             |               
            
                28.60
             |                           
            
                28.70
             | 
            
                28.72
             |                     
            
                28.70
             |                                 
            
                9,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2022
             | 
            
                -0.35 / -1.19%
             |             
            
                29.10
             |           
            
                29.10
             |               
            
                28.80
             |                           
            
                28.95
             | 
            
                28.87
             |                     
            
                28.95
             |                                 
            
                10,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2022
             | 
            
                -0.10 / -0.34%
             |             
            
                29.45
             |           
            
                29.45
             |               
            
                28.80
             |                           
            
                29.30
             | 
            
                29.27
             |                     
            
                29.30
             |                                 
            
                17,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2022
             | 
            
                -0.10 / -0.34%
             |             
            
                28.30
             |           
            
                30.10
             |               
            
                28.30
             |                           
            
                29.40
             | 
            
                29.47
             |                     
            
                29.40
             |                                 
            
                15,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |