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            | 
                    Closing price on 6/12/2017
                 |  |  
    
        |           
                
                    | Open | 2.80 |  
                    | High | 2.80 |  
                    | Low | 2.46 |  
                    | Volume | 1,517,480 |  
                    | Split-adjusted Price | 2.46 |  
                
             | 
 |  ATG Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/12/2017 | -0.18 / -6.82% | 2.80 | 2.80 | 2.46 | 2.46 | 2.59 | 2.46 | 1,517,480 |   |  
            | 6/9/2017 | +0.17 / +6.88% | 2.64 | 2.64 | 2.64 | 2.64 | 2.64 | 2.64 | 385,700 |   |  			
            | 6/8/2017 | +0.16 / +6.93% | 2.47 | 2.47 | 2.45 | 2.47 | 2.47 | 2.47 | 801,600 |   |  
            | 6/7/2017 | +0.15 / +6.94% | 2.15 | 2.31 | 2.15 | 2.31 | 2.25 | 2.31 | 1,238,470 |   |  			
            | 6/6/2017 | 0.00 / 0.00% | 2.17 | 2.18 | 2.10 | 2.16 | 2.15 | 2.16 | 360,390 |   |  
            | 6/5/2017 | +0.08 / +3.85% | 2.18 | 2.18 | 2.14 | 2.16 | 2.16 | 2.16 | 562,930 |   |  			
            | 6/2/2017 | +0.04 / +1.96% | 2.04 | 2.10 | 2.04 | 2.08 | 2.08 | 2.08 | 124,810 |   |  
            | 6/1/2017 | -0.03 / -1.45% | 2.07 | 2.08 | 2.04 | 2.04 | 2.05 | 2.04 | 210,810 |   |  			
            | 5/31/2017 | -0.03 / -1.43% | 2.10 | 2.10 | 2.06 | 2.07 | 2.08 | 2.07 | 131,030 |   |  
            | 5/30/2017 | -0.10 / -4.55% | 2.15 | 2.17 | 2.10 | 2.10 | 2.13 | 2.10 | 277,160 |   |  			
            | 5/29/2017 | +0.07 / +3.29% | 2.15 | 2.25 | 2.14 | 2.20 | 2.20 | 2.20 | 889,280 |   |  
            | 5/26/2017 | +0.10 / +4.93% | 2.05 | 2.13 | 2.03 | 2.13 | 2.07 | 2.13 | 365,640 |   |  			
            | 5/25/2017 | -0.01 / -0.49% | 2.07 | 2.08 | 2.02 | 2.03 | 2.04 | 2.03 | 197,080 |   |  
            | 5/24/2017 | -0.04 / -1.92% | 2.03 | 2.08 | 2.03 | 2.04 | 2.05 | 2.04 | 66,780 |   |  			
            | 5/23/2017 | -0.02 / -0.95% | 2.07 | 2.10 | 2.00 | 2.08 | 2.05 | 2.08 | 243,500 |   |  
            | 5/22/2017 | +0.03 / +1.45% | 2.07 | 2.12 | 2.05 | 2.10 | 2.08 | 2.10 | 336,290 |   |  			
            | 5/19/2017 | +0.01 / +0.49% | 2.06 | 2.08 | 2.03 | 2.07 | 2.06 | 2.07 | 164,710 |   |  
            | 5/18/2017 | -0.07 / -3.29% | 2.10 | 2.11 | 2.06 | 2.06 | 2.08 | 2.06 | 200,690 |   |  			
            | 5/17/2017 | +0.09 / +4.41% | 2.06 | 2.18 | 2.04 | 2.13 | 2.11 | 2.13 | 608,770 |   |  
            | 5/16/2017 | +0.01 / +0.49% | 2.03 | 2.05 | 2.00 | 2.04 | 2.03 | 2.04 | 397,910 |   |  			
            | 5/15/2017 | +0.01 / +0.50% | 2.04 | 2.04 | 1.96 | 2.03 | 2.00 | 2.03 | 322,390 |   |  
            | 5/12/2017 | +0.01 / +0.50% | 2.05 | 2.05 | 2.00 | 2.02 | 2.02 | 2.02 | 157,780 |   |  			
            | 5/11/2017 | -0.06 / -2.90% | 2.03 | 2.06 | 2.00 | 2.01 | 2.02 | 2.01 | 199,200 |   |  
            | 5/10/2017 | +0.02 / +0.98% | 2.05 | 2.10 | 2.05 | 2.07 | 2.07 | 2.07 | 245,740 |   |  			
            | 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 |   |  |