| 
                 
                    Closing price on 4/4/2016
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    17.00 | 
                 
                
                    | High | 
                    17.00 | 
                 
                
                    | Low | 
                    16.10 | 
                     
                
                    | Volume | 
                    8,460 | 
                                 
                
                    | Split-adjusted Price | 
                    7.26 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/4/2016
             | 
            
                -1.20 / -6.94%
             |             
            
                17.00
             |           
            
                17.00
             |               
            
                16.10
             |                           
            
                16.10
             | 
            
                16.19
             |                     
            
                7.26
             |                                 
            
                8,460
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2016
             | 
            
                +0.40 / +2.37%
             |             
            
                17.40
             |           
            
                17.60
             |               
            
                17.30
             |                           
            
                17.30
             | 
            
                17.43
             |                     
            
                7.80
             |                                 
            
                686,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2016
             | 
            
                +1.10 / +6.96%
             |             
            
                16.90
             |           
            
                16.90
             |               
            
                16.50
             |                           
            
                16.90
             | 
            
                16.90
             |                     
            
                7.62
             |                                 
            
                7,160
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2016
             | 
            
                -0.20 / -1.25%
             |             
            
                16.00
             |           
            
                17.00
             |               
            
                15.80
             |                           
            
                15.80
             | 
            
                16.04
             |                     
            
                7.13
             |                                 
            
                6,670
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2016
             | 
            
                -1.20 / -6.98%
             |             
            
                16.70
             |           
            
                17.30
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.17
             |                     
            
                7.22
             |                                 
            
                8,780
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2016
             | 
            
                +0.60 / +3.61%
             |             
            
                17.00
             |           
            
                17.60
             |               
            
                17.00
             |                           
            
                17.20
             | 
            
                17.20
             |                     
            
                7.76
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2016
             | 
            
                -0.60 / -3.49%
             |             
            
                16.60
             |           
            
                16.60
             |               
            
                16.60
             |                           
            
                16.60
             | 
            
                16.60
             |                     
            
                7.49
             |                                 
            
                10
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2016
             | 
            
                +0.20 / +1.18%
             |             
            
                17.10
             |           
            
                17.20
             |               
            
                17.00
             |                           
            
                17.20
             | 
            
                17.13
             |                     
            
                7.76
             |                                 
            
                230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2016
             | 
            
                +0.40 / +2.41%
             |             
            
                16.90
             |           
            
                17.00
             |               
            
                16.60
             |                           
            
                17.00
             | 
            
                16.67
             |                     
            
                7.67
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2016
             | 
            
                -1.00 / -5.68%
             |             
            
                17.50
             |           
            
                17.80
             |               
            
                16.40
             |                           
            
                16.60
             | 
            
                16.45
             |                     
            
                7.49
             |                                 
            
                3,040
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2016
             | 
            
                -0.40 / -2.22%
             |             
            
                18.00
             |           
            
                18.20
             |               
            
                17.60
             |                           
            
                17.60
             | 
            
                17.85
             |                     
            
                7.94
             |                                 
            
                1,710
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2016
             | 
            
                -0.10 / -0.55%
             |             
            
                17.50
             |           
            
                18.20
             |               
            
                17.50
             |                           
            
                18.00
             | 
            
                18.03
             |                     
            
                8.12
             |                                 
            
                5,270
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/17/2016
             | 
            
                -0.70 / -3.72%
             |             
            
                19.40
             |           
            
                19.40
             |               
            
                17.50
             |                           
            
                18.10
             | 
            
                17.88
             |                     
            
                8.16
             |                                 
            
                1,790
             |            
            
                 
             |                                       
         
    
        
            | 
                3/16/2016
             | 
            
                +1.20 / +6.82%
             |             
            
                18.80
             |           
            
                18.80
             |               
            
                18.40
             |                           
            
                18.80
             | 
            
                18.76
             |                     
            
                8.48
             |                                 
            
                12,050
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2016
             | 
            
                +1.10 / +6.67%
             |             
            
                17.60
             |           
            
                17.60
             |               
            
                17.60
             |                           
            
                17.60
             | 
            
                17.60
             |                     
            
                7.94
             |                                 
            
                20,450
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2016
             | 
            
                +1.00 / +6.45%
             |             
            
                16.50
             |           
            
                16.50
             |               
            
                16.50
             |                           
            
                16.50
             | 
            
                16.50
             |                     
            
                7.44
             |                                 
            
                30,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2016
             | 
            
                +0.50 / +3.33%
             |             
            
                15.40
             |           
            
                15.50
             |               
            
                15.40
             |                           
            
                15.50
             | 
            
                15.45
             |                     
            
                6.99
             |                                 
            
                580
             |            
            
                 
             |                                       
         
    
        
            | 
                3/10/2016
             | 
            
                -0.70 / -4.46%
             |             
            
                15.00
             |           
            
                15.10
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.01
             |                     
            
                6.77
             |                                 
            
                1,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/9/2016
             | 
            
                +0.60 / +3.97%
             |             
            
                15.10
             |           
            
                15.70
             |               
            
                14.10
             |                           
            
                15.70
             | 
            
                14.71
             |                     
            
                7.08
             |                                 
            
                1,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2016
             | 
            
                -0.40 / -2.58%
             |             
            
                15.10
             |           
            
                15.90
             |               
            
                15.10
             |                           
            
                15.10
             | 
            
                15.30
             |                     
            
                6.81
             |                                 
            
                670,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2016
             | 
            
                -0.20 / -1.27%
             |             
            
                15.50
             |           
            
                15.90
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.60
             |                     
            
                6.99
             |                                 
            
                2,670
             |            
            
                 
             |                                       
         
    
        
            | 
                3/4/2016
             | 
            
                -0.20 / -1.26%
             |             
            
                15.90
             |           
            
                15.90
             |               
            
                15.70
             |                           
            
                15.70
             | 
            
                15.80
             |                     
            
                7.08
             |                                 
            
                80
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/3/2016
             | 
            
                +0.80 / +5.30%
             |             
            
                15.40
             |           
            
                15.90
             |               
            
                15.20
             |                           
            
                15.90
             | 
            
                15.39
             |                     
            
                7.17
             |                                 
            
                170
             |            
            
                 
             |                                       
         
    
        
            | 
                3/2/2016
             | 
            
                -0.40 / -2.58%
             |             
            
                15.00
             |           
            
                15.50
             |               
            
                14.60
             |                           
            
                15.10
             | 
            
                15.05
             |                     
            
                6.81
             |                                 
            
                480
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/1/2016
             | 
            
                0.00 / 0.00%
             |             
            
                15.50
             |           
            
                15.50
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.50
             |                     
            
                6.99
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/29/2016
             | 
            
                +0.50 / +3.33%
             |             
            
                16.00
             |           
            
                16.00
             |               
            
                15.50
             |                           
            
                15.50
             | 
            
                15.75
             |                     
            
                6.99
             |                                 
            
                70
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2016
             | 
            
                0.00 / 0.00%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                6.77
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2016
             | 
            
                +0.10 / +0.67%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                15.00
             |                           
            
                15.00
             | 
            
                15.00
             |                     
            
                6.77
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2016
             | 
            
                -1.10 / -6.88%
             |             
            
                15.00
             |           
            
                15.00
             |               
            
                14.90
             |                           
            
                14.90
             | 
            
                14.95
             |                     
            
                6.72
             |                                 
            
                8,390
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2016
             | 
            
                0.00 / 0.00%
             |             
            
                16.00
             |           
            
                16.00
             |               
            
                16.00
             |                           
            
                16.00
             | 
            
                16.00
             |                     
            
                7.22
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
         
    
    
 |