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            | 
                    Closing price on 1/18/2017
                 |  |  
    
        |           
                
                    | Open | 2.26 |  
                    | High | 2.26 |  
                    | Low | 2.26 |  
                    | Volume | 60 |  
                    | Split-adjusted Price | 2.26 |  
                
             | 
 |  ATG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 1/18/2017 | -0.16 / -6.61% | 2.26 | 2.26 | 2.26 | 2.26 | 2.26 | 2.26 | 60 |   |  
            | 1/17/2017 | -0.18 / -6.92% | 2.42 | 2.42 | 2.42 | 2.42 | 2.42 | 2.42 | 2,060 |   |  			
            | 1/16/2017 | -0.19 / -6.81% | 2.60 | 2.60 | 2.60 | 2.60 | 2.60 | 2.60 | 560 |   |  
            | 1/13/2017 | -0.20 / -6.69% | 2.79 | 2.79 | 2.79 | 2.79 | 2.79 | 2.79 | 210 |   |  			
            | 1/12/2017 | -0.22 / -6.85% | 3.10 | 3.10 | 2.99 | 2.99 | 3.05 | 2.99 | 26,570 |   |  
            | 1/11/2017 | -0.24 / -6.96% | 3.21 | 3.21 | 3.21 | 3.21 | 3.21 | 3.21 | 190 |   |  			
            | 1/10/2017 | -0.25 / -6.76% | 3.45 | 3.45 | 3.45 | 3.45 | 3.45 | 3.45 | 20 |   |  
            | 1/9/2017 | -0.27 / -6.80% | 3.70 | 3.70 | 3.70 | 3.70 | 3.70 | 3.70 | 330 |   |  			
            | 1/6/2017 | -0.29 / -6.81% | 3.97 | 3.97 | 3.97 | 3.97 | 3.97 | 3.97 | 120 |   |  
            | 1/5/2017 | -0.31 / -6.78% | 4.26 | 4.26 | 4.26 | 4.26 | 4.26 | 4.26 | 520 |   |  			
            | 1/4/2017 | -0.34 / -6.92% | 4.57 | 4.57 | 4.57 | 4.57 | 4.57 | 4.57 | 198,980 |   |  
            | 1/3/2017 | -0.36 / -6.83% | 4.91 | 4.91 | 4.91 | 4.91 | 4.91 | 4.91 | 20 |   |  			
            | 12/30/2016 | -0.39 / -6.89% | 5.27 | 5.27 | 5.27 | 5.27 | 5.27 | 5.27 | 1,760 |   |  
            | 12/29/2016 | -0.42 / -6.91% | 5.66 | 5.66 | 5.66 | 5.66 | 5.66 | 5.66 | 10,550 |   |  			
            | 12/28/2016 | -0.45 / -6.89% | 6.08 | 6.08 | 6.08 | 6.08 | 6.08 | 6.08 | 1,050 |   |  
            | 12/27/2016 | -0.49 / -6.98% | 6.53 | 6.53 | 6.53 | 6.53 | 6.53 | 6.53 | 10 |   |  			
            | 12/26/2016 | -0.52 / -6.90% | 7.02 | 7.02 | 7.02 | 7.02 | 7.02 | 7.02 | 10 |   |  
            | 12/23/2016 | -0.56 / -6.91% | 7.54 | 7.54 | 7.54 | 7.54 | 7.54 | 7.54 | 910 |   |  			
            | 12/22/2016 | -0.60 / -6.90% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 110 |   |  
            | 12/21/2016 | -0.65 / -6.95% | 8.70 | 9.30 | 8.70 | 8.70 | 8.99 | 8.70 | 13,240 |   |  			
            | 12/20/2016 | -0.70 / -6.97% | 9.35 | 9.35 | 9.35 | 9.35 | 9.35 | 9.35 | 10 |   |  
            | 12/19/2016 | -0.75 / -6.94% | 10.05 | 10.05 | 10.05 | 10.05 | 10.05 | 10.05 | 3,950 |   |  			
            | 12/16/2016 | -0.80 / -6.90% | 10.80 | 10.80 | 10.80 | 10.80 | 10.80 | 10.80 | 1,700 |   |  
            | 12/15/2016 | -0.85 / -6.83% | 12.45 | 12.50 | 11.60 | 11.60 | 12.39 | 11.60 | 115,440 |   |  			
            | 12/14/2016 | -0.30 / -2.35% | 12.75 | 12.75 | 11.90 | 12.45 | 12.67 | 12.45 | 408,480 |   |  
            | 12/13/2016 | -0.10 / -0.78% | 12.85 | 12.85 | 12.70 | 12.75 | 12.76 | 12.75 | 195,000 |   |  			
            | 12/12/2016 | -0.10 / -0.77% | 12.95 | 13.10 | 12.60 | 12.85 | 12.83 | 12.85 | 360,520 |   |  
            | 12/9/2016 | -0.05 / -0.38% | 13.00 | 13.10 | 12.80 | 12.95 | 12.94 | 12.95 | 174,310 |   |  			
            | 12/8/2016 | -0.30 / -2.26% | 13.20 | 13.40 | 13.00 | 13.00 | 13.10 | 13.00 | 184,200 |   |  
            | 12/7/2016 | +0.55 / +4.31% | 12.70 | 13.30 | 12.60 | 13.30 | 13.04 | 13.30 | 242,220 |   |  |