| 
                 
                    Closing price on 5/9/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    1.95 | 
                 
                
                    | High | 
                    2.09 | 
                 
                
                    | Low | 
                    1.84 | 
                     
                
                    | Volume | 
                    437,200 | 
                                 
                
                    | Split-adjusted Price | 
                    2.05 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
ATG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/9/2017
             | 
            
                +0.08 / +4.06%
             |             
            
                1.95
             |           
            
                2.09
             |               
            
                1.84
             |                           
            
                2.05
             | 
            
                1.95
             |                     
            
                2.05
             |                                 
            
                437,200
             |            
            
                 
             |                                       
         
    
        
            | 
                5/8/2017
             | 
            
                -0.08 / -3.90%
             |             
            
                1.95
             |           
            
                2.05
             |               
            
                1.91
             |                           
            
                1.97
             | 
            
                1.94
             |                     
            
                1.97
             |                                 
            
                678,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.04
             |           
            
                2.05
             |               
            
                1.91
             |                           
            
                2.05
             | 
            
                2.00
             |                     
            
                2.05
             |                                 
            
                357,570
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2017
             | 
            
                0.00 / 0.00%
             |             
            
                2.00
             |           
            
                2.07
             |               
            
                2.00
             |                           
            
                2.05
             | 
            
                2.04
             |                     
            
                2.05
             |                                 
            
                269,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2017
             | 
            
                -0.13 / -5.96%
             |             
            
                2.05
             |           
            
                2.15
             |               
            
                2.03
             |                           
            
                2.05
             | 
            
                2.05
             |                     
            
                2.05
             |                                 
            
                371,650
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2017
             | 
            
                -0.01 / -0.46%
             |             
            
                2.15
             |           
            
                2.24
             |               
            
                2.15
             |                           
            
                2.18
             | 
            
                2.18
             |                     
            
                2.18
             |                                 
            
                171,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2017
             | 
            
                +0.09 / +4.29%
             |             
            
                2.15
             |           
            
                2.22
             |               
            
                1.96
             |                           
            
                2.19
             | 
            
                2.03
             |                     
            
                2.19
             |                                 
            
                330,050
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2017
             | 
            
                -0.14 / -6.25%
             |             
            
                2.17
             |           
            
                2.30
             |               
            
                2.09
             |                           
            
                2.10
             | 
            
                2.09
             |                     
            
                2.10
             |                                 
            
                1,505,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2017
             | 
            
                -0.16 / -6.67%
             |             
            
                2.40
             |           
            
                2.40
             |               
            
                2.24
             |                           
            
                2.24
             | 
            
                2.24
             |                     
            
                2.24
             |                                 
            
                1,251,110
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2017
             | 
            
                -0.07 / -2.83%
             |             
            
                2.31
             |           
            
                2.49
             |               
            
                2.30
             |                           
            
                2.40
             | 
            
                2.32
             |                     
            
                2.40
             |                                 
            
                359,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2017
             | 
            
                -0.18 / -6.79%
             |             
            
                2.47
             |           
            
                2.53
             |               
            
                2.47
             |                           
            
                2.47
             | 
            
                2.47
             |                     
            
                2.47
             |                                 
            
                459,190
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2017
             | 
            
                +0.09 / +3.52%
             |             
            
                2.66
             |           
            
                2.66
             |               
            
                2.40
             |                           
            
                2.65
             | 
            
                2.57
             |                     
            
                2.65
             |                                 
            
                145,440
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2017
             | 
            
                +0.16 / +6.67%
             |             
            
                2.56
             |           
            
                2.56
             |               
            
                2.40
             |                           
            
                2.56
             | 
            
                2.56
             |                     
            
                2.56
             |                                 
            
                372,350
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2017
             | 
            
                -0.04 / -1.64%
             |             
            
                2.44
             |           
            
                2.49
             |               
            
                2.28
             |                           
            
                2.40
             | 
            
                2.40
             |                     
            
                2.40
             |                                 
            
                166,770
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2017
             | 
            
                -0.18 / -6.87%
             |             
            
                2.44
             |           
            
                2.59
             |               
            
                2.44
             |                           
            
                2.44
             | 
            
                2.48
             |                     
            
                2.44
             |                                 
            
                170,970
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2017
             | 
            
                +0.09 / +3.56%
             |             
            
                2.70
             |           
            
                2.70
             |               
            
                2.56
             |                           
            
                2.62
             | 
            
                2.67
             |                     
            
                2.62
             |                                 
            
                596,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2017
             | 
            
                +0.16 / +6.75%
             |             
            
                2.53
             |           
            
                2.53
             |               
            
                2.53
             |                           
            
                2.53
             | 
            
                2.53
             |                     
            
                2.53
             |                                 
            
                180,180
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2017
             | 
            
                +0.15 / +6.76%
             |             
            
                2.37
             |           
            
                2.37
             |               
            
                2.30
             |                           
            
                2.37
             | 
            
                2.35
             |                     
            
                2.37
             |                                 
            
                329,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2017
             | 
            
                +0.11 / +5.21%
             |             
            
                2.20
             |           
            
                2.22
             |               
            
                2.11
             |                           
            
                2.22
             | 
            
                2.20
             |                     
            
                2.22
             |                                 
            
                220,030
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2017
             | 
            
                -0.15 / -6.64%
             |             
            
                2.11
             |           
            
                2.30
             |               
            
                2.11
             |                           
            
                2.11
             | 
            
                2.12
             |                     
            
                2.11
             |                                 
            
                261,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2017
             | 
            
                -0.04 / -1.74%
             |             
            
                2.30
             |           
            
                2.32
             |               
            
                2.26
             |                           
            
                2.26
             | 
            
                2.27
             |                     
            
                2.26
             |                                 
            
                41,840
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2017
             | 
            
                -0.03 / -1.29%
             |             
            
                2.33
             |           
            
                2.33
             |               
            
                2.25
             |                           
            
                2.30
             | 
            
                2.28
             |                     
            
                2.30
             |                                 
            
                56,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2017
             | 
            
                +0.01 / +0.43%
             |             
            
                2.34
             |           
            
                2.34
             |               
            
                2.30
             |                           
            
                2.33
             | 
            
                2.32
             |                     
            
                2.33
             |                                 
            
                68,080
             |            
            
                 
             |                                       
         
    
        
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |