| 
                 
                    Closing price on 5/4/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    70.00 | 
                 
                
                    | High | 
                    72.60 | 
                 
                
                    | Low | 
                    70.00 | 
                     
                
                    | Volume | 
                    103,100 | 
                                 
                
                    | Split-adjusted Price | 
                    29.03 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
IMP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/4/2021
             | 
            
                -0.10 / -0.14%
             |             
            
                70.00
             |           
            
                72.60
             |               
            
                70.00
             |                           
            
                72.50
             | 
            
                72.32
             |                     
            
                29.03
             |                                 
            
                103,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/29/2021
             | 
            
                +0.10 / +0.14%
             |             
            
                72.90
             |           
            
                72.90
             |               
            
                72.00
             |                           
            
                72.60
             | 
            
                72.50
             |                     
            
                29.07
             |                                 
            
                65,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/28/2021
             | 
            
                +0.50 / +0.69%
             |             
            
                73.00
             |           
            
                73.00
             |               
            
                72.00
             |                           
            
                72.50
             | 
            
                72.20
             |                     
            
                29.03
             |                                 
            
                75,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/27/2021
             | 
            
                +0.70 / +0.98%
             |             
            
                72.00
             |           
            
                72.70
             |               
            
                71.50
             |                           
            
                72.00
             | 
            
                72.16
             |                     
            
                28.83
             |                                 
            
                245,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/26/2021
             | 
            
                +0.20 / +0.28%
             |             
            
                71.10
             |           
            
                72.00
             |               
            
                71.00
             |                           
            
                71.30
             | 
            
                71.10
             |                     
            
                28.55
             |                                 
            
                27,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/23/2021
             | 
            
                +0.10 / +0.14%
             |             
            
                71.00
             |           
            
                72.00
             |               
            
                71.00
             |                           
            
                71.10
             | 
            
                71.00
             |                     
            
                28.47
             |                                 
            
                58,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/22/2021
             | 
            
                -1.50 / -2.07%
             |             
            
                72.00
             |           
            
                72.50
             |               
            
                70.10
             |                           
            
                71.00
             | 
            
                72.24
             |                     
            
                28.43
             |                                 
            
                85,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2021
             | 
            
                +0.50 / +0.69%
             |             
            
                70.00
             |           
            
                72.50
             |               
            
                70.00
             |                           
            
                72.50
             | 
            
                72.07
             |                     
            
                29.03
             |                                 
            
                86,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2021
             | 
            
                +1.00 / +1.41%
             |             
            
                71.90
             |           
            
                73.00
             |               
            
                71.20
             |                           
            
                72.00
             | 
            
                72.37
             |                     
            
                28.83
             |                                 
            
                1,152,291
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2021
             | 
            
                -1.00 / -1.39%
             |             
            
                72.00
             |           
            
                72.30
             |               
            
                70.00
             |                           
            
                71.00
             | 
            
                71.57
             |                     
            
                28.43
             |                                 
            
                602,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/15/2021
             | 
            
                0.00 / 0.00%
             |             
            
                72.50
             |           
            
                72.50
             |               
            
                71.90
             |                           
            
                72.00
             | 
            
                72.06
             |                     
            
                28.83
             |                                 
            
                64,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2021
             | 
            
                0.00 / 0.00%
             |             
            
                72.40
             |           
            
                72.40
             |               
            
                71.90
             |                           
            
                72.00
             | 
            
                72.02
             |                     
            
                28.83
             |                                 
            
                38,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2021
             | 
            
                -0.70 / -0.96%
             |             
            
                72.70
             |           
            
                72.70
             |               
            
                71.90
             |                           
            
                72.00
             | 
            
                72.33
             |                     
            
                28.83
             |                                 
            
                180,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2021
             | 
            
                +0.10 / +0.14%
             |             
            
                72.90
             |           
            
                74.50
             |               
            
                71.90
             |                           
            
                72.70
             | 
            
                72.60
             |                     
            
                29.11
             |                                 
            
                884,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/9/2021
             | 
            
                0.00 / 0.00%
             |             
            
                72.60
             |           
            
                73.20
             |               
            
                72.60
             |                           
            
                72.60
             | 
            
                72.88
             |                     
            
                29.07
             |                                 
            
                107,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/8/2021
             | 
            
                -0.40 / -0.55%
             |             
            
                73.90
             |           
            
                73.90
             |               
            
                72.30
             |                           
            
                72.60
             | 
            
                72.85
             |                     
            
                29.07
             |                                 
            
                52,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2021
             | 
            
                0.00 / 0.00%
             |             
            
                73.80
             |           
            
                73.80
             |               
            
                72.30
             |                           
            
                73.00
             | 
            
                72.96
             |                     
            
                29.23
             |                                 
            
                308,100
             |            
            
                 
             |                                       
         
    
        
            | 
                4/6/2021
             | 
            
                -1.00 / -1.35%
             |             
            
                74.10
             |           
            
                74.10
             |               
            
                72.50
             |                           
            
                73.00
             | 
            
                73.10
             |                     
            
                29.23
             |                                 
            
                112,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/5/2021
             | 
            
                +1.80 / +2.49%
             |             
            
                72.50
             |           
            
                74.20
             |               
            
                72.20
             |                           
            
                74.00
             | 
            
                73.51
             |                     
            
                29.63
             |                                 
            
                29,800
             |            
            
                 
             |                                       
         
    
        
            | 
                4/2/2021
             | 
            
                -1.30 / -1.77%
             |             
            
                73.50
             |           
            
                73.50
             |               
            
                71.00
             |                           
            
                72.20
             | 
            
                71.22
             |                     
            
                28.91
             |                                 
            
                1,045,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/1/2021
             | 
            
                0.00 / 0.00%
             |             
            
                73.50
             |           
            
                73.70
             |               
            
                73.00
             |                           
            
                73.50
             | 
            
                73.46
             |                     
            
                29.43
             |                                 
            
                42,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/31/2021
             | 
            
                -0.20 / -0.27%
             |             
            
                72.40
             |           
            
                73.80
             |               
            
                72.40
             |                           
            
                73.50
             | 
            
                73.52
             |                     
            
                29.43
             |                                 
            
                40,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/30/2021
             | 
            
                -0.40 / -0.54%
             |             
            
                74.30
             |           
            
                75.00
             |               
            
                73.70
             |                           
            
                73.70
             | 
            
                74.10
             |                     
            
                29.51
             |                                 
            
                10,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/29/2021
             | 
            
                +0.70 / +0.95%
             |             
            
                76.00
             |           
            
                76.00
             |               
            
                74.00
             |                           
            
                74.10
             | 
            
                74.98
             |                     
            
                29.67
             |                                 
            
                62,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/26/2021
             | 
            
                +0.70 / +0.96%
             |             
            
                72.90
             |           
            
                73.50
             |               
            
                72.60
             |                           
            
                73.40
             | 
            
                72.97
             |                     
            
                29.39
             |                                 
            
                58,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/25/2021
             | 
            
                +0.10 / +0.14%
             |             
            
                72.80
             |           
            
                73.00
             |               
            
                72.60
             |                           
            
                72.70
             | 
            
                72.71
             |                     
            
                29.11
             |                                 
            
                62,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/24/2021
             | 
            
                -0.10 / -0.14%
             |             
            
                72.70
             |           
            
                72.80
             |               
            
                72.40
             |                           
            
                72.60
             | 
            
                72.65
             |                     
            
                29.07
             |                                 
            
                200,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/23/2021
             | 
            
                -0.10 / -0.14%
             |             
            
                72.80
             |           
            
                73.20
             |               
            
                72.60
             |                           
            
                72.70
             | 
            
                72.85
             |                     
            
                29.11
             |                                 
            
                88,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/22/2021
             | 
            
                -0.20 / -0.27%
             |             
            
                73.50
             |           
            
                73.60
             |               
            
                72.70
             |                           
            
                72.80
             | 
            
                73.10
             |                     
            
                29.15
             |                                 
            
                84,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/19/2021
             | 
            
                +0.50 / +0.69%
             |             
            
                72.50
             |           
            
                73.00
             |               
            
                71.20
             |                           
            
                73.00
             | 
            
                72.69
             |                     
            
                29.23
             |                                 
            
                41,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |