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            | 
                    Closing price on 2/12/2018
                 |  |  
    
        |           
                
                    | Open | 66.50 |  
                    | High | 69.90 |  
                    | Low | 66.40 |  
                    | Volume | 135,440 |  
                    | Split-adjusted Price | 43.60 |  
                
             | 
 |  AST Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/12/2018 | +1.50 / +2.29% | 66.50 | 69.90 | 66.40 | 67.10 | 67.06 | 43.60 | 135,440 |   |  
            | 2/9/2018 | -1.40 / -2.09% | 65.00 | 65.80 | 64.00 | 65.60 | 65.52 | 42.63 | 175,110 |   |  			
            | 2/8/2018 | +0.50 / +0.75% | 66.50 | 67.50 | 65.50 | 67.00 | 67.19 | 43.54 | 186,020 |   |  
            | 2/7/2018 | +2.20 / +3.42% | 66.30 | 66.50 | 65.10 | 66.50 | 65.28 | 43.21 | 302,300 |   |  			
            | 2/6/2018 | -4.30 / -6.27% | 65.00 | 66.80 | 63.80 | 64.30 | 64.21 | 41.78 | 380,640 |   |  
            | 2/5/2018 | -1.10 / -1.58% | 69.30 | 69.30 | 68.20 | 68.60 | 68.76 | 44.58 | 293,730 |   |  			
            | 2/2/2018 | +0.90 / +1.31% | 70.00 | 70.00 | 68.80 | 69.70 | 69.63 | 45.29 | 422,370 |   |  
            | 2/1/2018 | +2.90 / +4.40% | 66.50 | 68.80 | 66.00 | 68.80 | 67.72 | 44.71 | 571,760 |   |  			
            | 1/31/2018 | +0.80 / +1.23% | 67.00 | 67.00 | 65.70 | 65.90 | 65.91 | 42.82 | 266,870 |   |  
            | 1/30/2018 | -0.70 / -1.06% | 64.00 | 65.80 | 63.50 | 65.10 | 64.78 | 42.30 | 504,390 |   |  			
            | 1/29/2018 | -0.60 / -0.90% | 63.00 | 66.30 | 62.80 | 65.80 | 63.14 | 42.76 | 269,020 |   |  
            | 1/26/2018 | -0.10 / -0.15% | 66.70 | 66.80 | 66.00 | 66.40 | 66.50 | 43.15 | 363,520 |   |  			
            | 1/25/2018 | +0.30 / +0.45% | 67.00 | 67.00 | 65.00 | 66.50 | 65.81 | 43.21 | 278,640 |   |  
            | 1/22/2018 | +1.30 / +2.00% | 64.90 | 66.50 | 64.90 | 66.20 | 66.16 | 43.02 | 295,680 |   |  			
            | 1/19/2018 | +0.20 / +0.31% | 64.70 | 65.30 | 63.00 | 64.90 | 64.21 | 42.17 | 159,450 |   |  
            | 1/18/2018 | -0.50 / -0.77% | 65.00 | 65.00 | 61.80 | 64.70 | 64.35 | 42.04 | 118,340 |   |  			
            | 1/17/2018 | +1.10 / +1.72% | 66.00 | 67.00 | 65.00 | 65.20 | 66.00 | 42.37 | 106,720 |   |  
            | 1/16/2018 | -0.20 / -0.31% | 63.10 | 64.10 | 62.40 | 64.10 | 63.38 | 41.65 | 126,190 |   |  			
            | 1/15/2018 | -1.70 / -2.58% | 66.00 | 66.50 | 63.90 | 64.30 | 65.05 | 41.78 | 83,550 |   |  
            | 1/12/2018 | +0.30 / +0.46% | 69.00 | 69.00 | 65.00 | 66.00 | 65.21 | 42.89 | 254,850 |   |  			
            | 1/11/2018 | -4.90 / -6.94% | 68.00 | 70.60 | 65.70 | 65.70 | 67.90 | 42.69 | 223,460 |   |  
            | 1/10/2018 | +4.60 / +6.97% | 70.60 | 70.60 | 70.60 | 70.60 | 70.60 | 45.88 | 193,190 |   |  			
            | 1/9/2018 | +4.30 / +6.97% | 66.00 | 66.00 | 66.00 | 66.00 | 66.00 | 42.89 | 243,230 |   |  
            | 1/8/2018 | +4.00 / +6.93% | 61.70 | 61.70 | 61.70 | 61.70 | 61.70 | 40.09 | 180,720 |   |  			
            | 1/5/2018 | +3.70 / +6.85% | 57.70 | 57.70 | 57.70 | 57.70 | 57.70 | 37.50 | 8,700 |   |  
            | 1/4/2018 | +54.00 / +0.00% | 54.00 | 54.00 | 54.00 | 54.00 | 54.00 | 35.09 | 12,000 |   |  |