| 
    
        
            | 
                    Closing price on 4/24/2017
                 |  |  
    
        |           
                
                    | Open | 2.31 |  
                    | High | 2.49 |  
                    | Low | 2.30 |  
                    | Volume | 359,760 |  
                    | Split-adjusted Price | 2.40 |  
                
             | 
 |  ATG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 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 |   |  |