| 
                 
                    Closing price on 6/19/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    63.00 | 
                 
                
                    | High | 
                    63.00 | 
                 
                
                    | Low | 
                    62.00 | 
                     
                
                    | Volume | 
                    825,280 | 
                                 
                
                    | Split-adjusted Price | 
                    15.68 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
IMP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/19/2017
             | 
            
                0.00 / 0.00%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                62.00
             |                           
            
                62.50
             | 
            
                62.46
             |                     
            
                15.68
             |                                 
            
                825,280
             |            
            
                 
             |                                       
         
    
        
            | 
                6/16/2017
             | 
            
                +4.00 / +6.84%
             |             
            
                59.00
             |           
            
                62.50
             |               
            
                58.90
             |                           
            
                62.50
             | 
            
                61.89
             |                     
            
                15.68
             |                                 
            
                947,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/15/2017
             | 
            
                0.00 / 0.00%
             |             
            
                58.40
             |           
            
                60.00
             |               
            
                58.40
             |                           
            
                58.50
             | 
            
                58.56
             |                     
            
                14.68
             |                                 
            
                812,020
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2017
             | 
            
                -0.40 / -0.68%
             |             
            
                58.30
             |           
            
                58.70
             |               
            
                58.00
             |                           
            
                58.50
             | 
            
                58.43
             |                     
            
                14.68
             |                                 
            
                797,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2017
             | 
            
                -0.50 / -0.84%
             |             
            
                58.00
             |           
            
                59.00
             |               
            
                58.00
             |                           
            
                58.90
             | 
            
                58.34
             |                     
            
                14.78
             |                                 
            
                801,890
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2017
             | 
            
                +0.40 / +0.68%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                58.60
             |                           
            
                59.40
             | 
            
                59.61
             |                     
            
                14.90
             |                                 
            
                800,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/9/2017
             | 
            
                -0.20 / -0.34%
             |             
            
                59.00
             |           
            
                59.50
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.10
             |                     
            
                14.80
             |                                 
            
                801,470
             |            
            
                 
             |                                       
         
    
        
            | 
                6/8/2017
             | 
            
                +2.20 / +3.86%
             |             
            
                57.40
             |           
            
                60.00
             |               
            
                57.00
             |                           
            
                59.20
             | 
            
                58.57
             |                     
            
                14.85
             |                                 
            
                824,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                56.10
             |                           
            
                57.00
             | 
            
                56.73
             |                     
            
                14.30
             |                                 
            
                804,830
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2017
             | 
            
                -0.20 / -0.35%
             |             
            
                57.00
             |           
            
                57.10
             |               
            
                56.80
             |                           
            
                57.00
             | 
            
                56.99
             |                     
            
                14.30
             |                                 
            
                813,390
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2017
             | 
            
                0.00 / 0.00%
             |             
            
                57.20
             |           
            
                57.20
             |               
            
                56.10
             |                           
            
                57.20
             | 
            
                57.06
             |                     
            
                14.35
             |                                 
            
                810,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/2/2017
             | 
            
                +0.30 / +0.53%
             |             
            
                56.90
             |           
            
                57.20
             |               
            
                56.90
             |                           
            
                57.20
             | 
            
                57.09
             |                     
            
                14.35
             |                                 
            
                801,420
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/1/2017
             | 
            
                -0.30 / -0.52%
             |             
            
                56.90
             |           
            
                57.50
             |               
            
                56.80
             |                           
            
                56.90
             | 
            
                57.26
             |                     
            
                14.28
             |                                 
            
                803,740
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2017
             | 
            
                +0.60 / +1.06%
             |             
            
                56.80
             |           
            
                57.30
             |               
            
                56.70
             |                           
            
                57.20
             | 
            
                56.96
             |                     
            
                14.35
             |                                 
            
                800,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2017
             | 
            
                -0.30 / -0.53%
             |             
            
                56.50
             |           
            
                57.00
             |               
            
                56.50
             |                           
            
                56.60
             | 
            
                56.68
             |                     
            
                14.20
             |                                 
            
                816,190
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2017
             | 
            
                -0.30 / -0.52%
             |             
            
                57.20
             |           
            
                57.40
             |               
            
                56.90
             |                           
            
                56.90
             | 
            
                57.00
             |                     
            
                14.28
             |                                 
            
                810,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/26/2017
             | 
            
                +0.20 / +0.35%
             |             
            
                56.10
             |           
            
                57.40
             |               
            
                56.10
             |                           
            
                57.20
             | 
            
                56.97
             |                     
            
                14.35
             |                                 
            
                807,520
             |            
            
                 
             |                                       
         
    
        
            | 
                5/25/2017
             | 
            
                -0.10 / -0.18%
             |             
            
                57.10
             |           
            
                57.20
             |               
            
                56.20
             |                           
            
                57.00
             | 
            
                56.88
             |                     
            
                14.30
             |                                 
            
                818,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/24/2017
             | 
            
                -4.80 / -7.75%
             |             
            
                58.50
             |           
            
                58.50
             |               
            
                57.10
             |                           
            
                57.10
             | 
            
                57.87
             |                     
            
                14.33
             |                                 
            
                814,490
             |            
            
                 
             |                                       
         
    
        
            | 
                5/23/2017
             | 
            
                -0.10 / -0.16%
             |             
            
                61.80
             |           
            
                62.30
             |               
            
                61.30
             |                           
            
                61.90
             | 
            
                61.89
             |                     
            
                13.94
             |                                 
            
                801,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/22/2017
             | 
            
                +0.10 / +0.16%
             |             
            
                61.90
             |           
            
                62.50
             |               
            
                61.20
             |                           
            
                62.00
             | 
            
                61.84
             |                     
            
                13.96
             |                                 
            
                806,820
             |            
            
                 
             |                                       
         
    
        
            | 
                5/19/2017
             | 
            
                +0.90 / +1.48%
             |             
            
                61.50
             |           
            
                62.00
             |               
            
                61.50
             |                           
            
                61.90
             | 
            
                61.69
             |                     
            
                13.94
             |                                 
            
                807,220
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/18/2017
             | 
            
                -0.90 / -1.45%
             |             
            
                62.80
             |           
            
                62.80
             |               
            
                61.00
             |                           
            
                61.00
             | 
            
                61.77
             |                     
            
                13.73
             |                                 
            
                810,370
             |            
            
                 
             |                                       
         
    
        
            | 
                5/17/2017
             | 
            
                +0.90 / +1.48%
             |             
            
                61.30
             |           
            
                62.40
             |               
            
                61.30
             |                           
            
                61.90
             | 
            
                61.82
             |                     
            
                13.94
             |                                 
            
                800,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/16/2017
             | 
            
                +0.70 / +1.16%
             |             
            
                61.00
             |           
            
                61.50
             |               
            
                60.50
             |                           
            
                61.00
             | 
            
                61.12
             |                     
            
                13.73
             |                                 
            
                805,230
             |            
            
                 
             |                                       
         
    
        
            | 
                5/15/2017
             | 
            
                +0.30 / +0.50%
             |             
            
                60.00
             |           
            
                61.40
             |               
            
                59.90
             |                           
            
                60.30
             | 
            
                60.01
             |                     
            
                13.58
             |                                 
            
                364,330
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/12/2017
             | 
            
                -0.60 / -0.99%
             |             
            
                60.60
             |           
            
                60.60
             |               
            
                59.70
             |                           
            
                60.00
             | 
            
                60.09
             |                     
            
                13.51
             |                                 
            
                31,180
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2017
             | 
            
                +0.30 / +0.50%
             |             
            
                61.00
             |           
            
                61.50
             |               
            
                60.30
             |                           
            
                60.60
             | 
            
                60.94
             |                     
            
                13.64
             |                                 
            
                19,150
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/10/2017
             | 
            
                +0.50 / +0.84%
             |             
            
                59.80
             |           
            
                60.40
             |               
            
                59.80
             |                           
            
                60.30
             | 
            
                60.02
             |                     
            
                13.58
             |                                 
            
                17,880
             |            
            
                 
             |                                       
         
    
        
            | 
                5/9/2017
             | 
            
                -0.30 / -0.50%
             |             
            
                59.20
             |           
            
                60.10
             |               
            
                59.20
             |                           
            
                59.80
             | 
            
                59.88
             |                     
            
                13.46
             |                                 
            
                6,170
             |  
            
                 
             |                                                              
             
    
         
    
    
 |