| 
                 
                    Closing price on 4/3/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    2.35 | 
                 
                
                    | High | 
                    2.36 | 
                 
                
                    | Low | 
                    2.30 | 
                     
                
                    | Volume | 
                    62,020 | 
                                 
                
                    | Split-adjusted Price | 
                    2.32 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ATG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/3/2017
             | 
            
                -0.01 / -0.43%
             |             
            
                2.35
             |           
            
                2.36
             |               
            
                2.30
             |                           
            
                2.32
             | 
            
                2.32
             |                     
            
                2.32
             |                                 
            
                62,020
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.34
             |           
            
                2.35
             |               
            
                2.30
             |                           
            
                2.33
             | 
            
                2.31
             |                     
            
                2.33
             |                                 
            
                62,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2017
             | 
            
                -0.01 / -0.43%
             |             
            
                2.31
             |           
            
                2.38
             |               
            
                2.31
             |                           
            
                2.33
             | 
            
                2.33
             |                     
            
                2.33
             |                                 
            
                51,950
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.32
             |           
            
                2.40
             |               
            
                2.31
             |                           
            
                2.34
             | 
            
                2.35
             |                     
            
                2.34
             |                                 
            
                24,660
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/28/2017
             | 
            
                +0.03 / +1.30%
             |             
            
                2.42
             |           
            
                2.42
             |               
            
                2.31
             |                           
            
                2.34
             | 
            
                2.35
             |                     
            
                2.34
             |                                 
            
                124,050
             |            
            
                 
             |                                       
         
    
        
            | 
                3/27/2017
             | 
            
                +0.01 / +0.43%
             |             
            
                2.30
             |           
            
                2.36
             |               
            
                2.30
             |                           
            
                2.31
             | 
            
                2.32
             |                     
            
                2.31
             |                                 
            
                108,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2017
             | 
            
                -0.11 / -4.56%
             |             
            
                2.41
             |           
            
                2.41
             |               
            
                2.29
             |                           
            
                2.30
             | 
            
                2.31
             |                     
            
                2.30
             |                                 
            
                348,770
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2017
             | 
            
                -0.03 / -1.23%
             |             
            
                2.44
             |           
            
                2.45
             |               
            
                2.40
             |                           
            
                2.41
             | 
            
                2.43
             |                     
            
                2.41
             |                                 
            
                54,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2017
             | 
            
                -0.05 / -2.01%
             |             
            
                2.50
             |           
            
                2.50
             |               
            
                2.44
             |                           
            
                2.44
             | 
            
                2.46
             |                     
            
                2.44
             |                                 
            
                105,090
             |            
            
                 
             |                                       
         
    
        
            | 
                3/21/2017
             | 
            
                -0.01 / -0.40%
             |             
            
                2.50
             |           
            
                2.52
             |               
            
                2.47
             |                           
            
                2.49
             | 
            
                2.49
             |                     
            
                2.49
             |                                 
            
                156,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/20/2017
             | 
            
                -0.01 / -0.40%
             |             
            
                2.51
             |           
            
                2.51
             |               
            
                2.45
             |                           
            
                2.50
             | 
            
                2.47
             |                     
            
                2.50
             |                                 
            
                239,980
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2017
             | 
            
                -0.11 / -4.20%
             |             
            
                2.60
             |           
            
                2.60
             |               
            
                2.45
             |                           
            
                2.51
             | 
            
                2.49
             |                     
            
                2.51
             |                                 
            
                162,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2017
             | 
            
                +0.14 / +5.65%
             |             
            
                2.48
             |           
            
                2.63
             |               
            
                2.45
             |                           
            
                2.62
             | 
            
                2.58
             |                     
            
                2.62
             |                                 
            
                173,120
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2017
             | 
            
                -0.11 / -4.25%
             |             
            
                2.57
             |           
            
                2.58
             |               
            
                2.46
             |                           
            
                2.48
             | 
            
                2.54
             |                     
            
                2.48
             |                                 
            
                203,140
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/14/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.45
             |           
            
                2.63
             |               
            
                2.45
             |                           
            
                2.59
             | 
            
                2.53
             |                     
            
                2.59
             |                                 
            
                193,880
             |            
            
                 
             |                                       
         
    
        
            | 
                3/13/2017
             | 
            
                -0.01 / -0.38%
             |             
            
                2.71
             |           
            
                2.71
             |               
            
                2.46
             |                           
            
                2.59
             | 
            
                2.59
             |                     
            
                2.59
             |                                 
            
                211,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2017
             | 
            
                -0.19 / -6.81%
             |             
            
                2.79
             |           
            
                2.79
             |               
            
                2.60
             |                           
            
                2.60
             | 
            
                2.64
             |                     
            
                2.60
             |                                 
            
                372,510
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2017
             | 
            
                +0.12 / +4.49%
             |             
            
                2.57
             |           
            
                2.85
             |               
            
                2.57
             |                           
            
                2.79
             | 
            
                2.77
             |                     
            
                2.79
             |                                 
            
                88,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2017
             | 
            
                -0.18 / -6.32%
             |             
            
                2.71
             |           
            
                2.84
             |               
            
                2.66
             |                           
            
                2.67
             | 
            
                2.71
             |                     
            
                2.67
             |                                 
            
                239,070
             |            
            
                 
             |                                       
         
    
        
            | 
                3/7/2017
             | 
            
                -0.07 / -2.40%
             |             
            
                2.74
             |           
            
                2.86
             |               
            
                2.74
             |                           
            
                2.85
             | 
            
                2.79
             |                     
            
                2.85
             |                                 
            
                290,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/6/2017
             | 
            
                +0.01 / +0.34%
             |             
            
                3.11
             |           
            
                3.11
             |               
            
                2.80
             |                           
            
                2.92
             | 
            
                3.00
             |                     
            
                2.92
             |                                 
            
                281,970
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2017
             | 
            
                +0.19 / +6.99%
             |             
            
                2.91
             |           
            
                2.91
             |               
            
                2.80
             |                           
            
                2.91
             | 
            
                2.90
             |                     
            
                2.91
             |                                 
            
                474,470
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2017
             | 
            
                +0.17 / +6.67%
             |             
            
                2.38
             |           
            
                2.72
             |               
            
                2.38
             |                           
            
                2.72
             | 
            
                2.61
             |                     
            
                2.72
             |                                 
            
                488,220
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2017
             | 
            
                -0.19 / -6.93%
             |             
            
                2.55
             |           
            
                2.55
             |               
            
                2.55
             |                           
            
                2.55
             | 
            
                2.55
             |                     
            
                2.55
             |                                 
            
                155,880
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/28/2017
             | 
            
                -0.20 / -6.80%
             |             
            
                2.75
             |           
            
                2.75
             |               
            
                2.74
             |                           
            
                2.74
             | 
            
                2.74
             |                     
            
                2.74
             |                                 
            
                531,570
             |            
            
                 
             |                                       
         
    
        
            | 
                2/27/2017
             | 
            
                -0.22 / -6.96%
             |             
            
                2.94
             |           
            
                3.16
             |               
            
                2.94
             |                           
            
                2.94
             | 
            
                2.97
             |                     
            
                2.94
             |                                 
            
                531,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2017
             | 
            
                -0.23 / -6.78%
             |             
            
                3.17
             |           
            
                3.39
             |               
            
                3.16
             |                           
            
                3.16
             | 
            
                3.17
             |                     
            
                3.16
             |                                 
            
                500,660
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2017
             | 
            
                +0.13 / +3.99%
             |             
            
                3.04
             |           
            
                3.48
             |               
            
                3.04
             |                           
            
                3.39
             | 
            
                3.23
             |                     
            
                3.39
             |                                 
            
                1,300,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2017
             | 
            
                -0.24 / -6.86%
             |             
            
                3.26
             |           
            
                3.30
             |               
            
                3.26
             |                           
            
                3.26
             | 
            
                3.26
             |                     
            
                3.26
             |                                 
            
                400,140
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2017
             | 
            
                -0.24 / -6.42%
             |             
            
                3.74
             |           
            
                4.00
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.76
             |                     
            
                3.50
             |                                 
            
                777,330
             |  
            
                 
             |                                                              
             
    
         
    
    
 |