| 
                 
                    Closing price on 3/24/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    72.70 | 
                 
                
                    | High | 
                    72.80 | 
                 
                
                    | Low | 
                    72.40 | 
                     
                
                    | Volume | 
                    200,500 | 
                                 
                
                    | Split-adjusted Price | 
                    29.07 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
IMP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                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
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/18/2021
             | 
            
                0.00 / 0.00%
             |             
            
                72.90
             |           
            
                73.00
             |               
            
                72.00
             |                           
            
                72.50
             | 
            
                72.47
             |                     
            
                29.03
             |                                 
            
                54,800
             |            
            
                 
             |                                       
         
    
        
            | 
                3/17/2021
             | 
            
                +0.40 / +0.55%
             |             
            
                72.50
             |           
            
                72.60
             |               
            
                71.10
             |                           
            
                72.50
             | 
            
                72.24
             |                     
            
                29.03
             |                                 
            
                480,616
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/16/2021
             | 
            
                -1.60 / -2.17%
             |             
            
                73.70
             |           
            
                73.70
             |               
            
                71.10
             |                           
            
                72.10
             | 
            
                72.77
             |                     
            
                28.87
             |                                 
            
                114,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/15/2021
             | 
            
                +4.20 / +6.04%
             |             
            
                69.80
             |           
            
                73.80
             |               
            
                69.80
             |                           
            
                73.70
             | 
            
                72.25
             |                     
            
                29.51
             |                                 
            
                338,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/12/2021
             | 
            
                -0.50 / -0.71%
             |             
            
                70.00
             |           
            
                70.00
             |               
            
                68.00
             |                           
            
                69.50
             | 
            
                68.98
             |                     
            
                27.83
             |                                 
            
                203,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/11/2021
             | 
            
                +3.00 / +4.48%
             |             
            
                67.20
             |           
            
                70.00
             |               
            
                67.00
             |                           
            
                70.00
             | 
            
                67.77
             |                     
            
                28.03
             |                                 
            
                69,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/10/2021
             | 
            
                +1.50 / +2.29%
             |             
            
                65.60
             |           
            
                67.00
             |               
            
                65.00
             |                           
            
                67.00
             | 
            
                65.49
             |                     
            
                26.83
             |                                 
            
                67,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/9/2021
             | 
            
                -0.50 / -0.76%
             |             
            
                66.00
             |           
            
                67.00
             |               
            
                65.10
             |                           
            
                65.50
             | 
            
                65.90
             |                     
            
                26.23
             |                                 
            
                86,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/8/2021
             | 
            
                +2.30 / +3.61%
             |             
            
                65.40
             |           
            
                67.00
             |               
            
                63.80
             |                           
            
                66.00
             | 
            
                65.83
             |                     
            
                26.43
             |                                 
            
                129,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/5/2021
             | 
            
                +0.70 / +1.11%
             |             
            
                62.50
             |           
            
                64.20
             |               
            
                62.50
             |                           
            
                63.70
             | 
            
                63.61
             |                     
            
                25.51
             |                                 
            
                75,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/4/2021
             | 
            
                -0.50 / -0.79%
             |             
            
                64.20
             |           
            
                64.20
             |               
            
                63.00
             |                           
            
                63.00
             | 
            
                63.43
             |                     
            
                25.23
             |                                 
            
                50,000
             |            
            
                 
             |                                       
         
    
        
            | 
                3/3/2021
             | 
            
                +1.00 / +1.60%
             |             
            
                63.00
             |           
            
                63.80
             |               
            
                62.60
             |                           
            
                63.50
             | 
            
                62.96
             |                     
            
                25.43
             |                                 
            
                76,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/2/2021
             | 
            
                -1.30 / -2.04%
             |             
            
                64.00
             |           
            
                64.20
             |               
            
                62.50
             |                           
            
                62.50
             | 
            
                63.53
             |                     
            
                25.03
             |                                 
            
                81,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/1/2021
             | 
            
                +0.20 / +0.31%
             |             
            
                64.00
             |           
            
                64.00
             |               
            
                63.30
             |                           
            
                63.80
             | 
            
                63.60
             |                     
            
                25.55
             |                                 
            
                68,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/26/2021
             | 
            
                +0.60 / +0.95%
             |             
            
                62.80
             |           
            
                65.00
             |               
            
                61.30
             |                           
            
                63.60
             | 
            
                63.82
             |                     
            
                25.47
             |                                 
            
                64,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2021
             | 
            
                +1.60 / +2.61%
             |             
            
                61.40
             |           
            
                63.30
             |               
            
                61.40
             |                           
            
                63.00
             | 
            
                61.40
             |                     
            
                25.23
             |                                 
            
                96,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/24/2021
             | 
            
                -0.30 / -0.49%
             |             
            
                61.70
             |           
            
                62.50
             |               
            
                61.10
             |                           
            
                61.40
             | 
            
                61.53
             |                     
            
                24.59
             |                                 
            
                87,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2021
             | 
            
                -1.30 / -2.06%
             |             
            
                63.00
             |           
            
                63.00
             |               
            
                61.00
             |                           
            
                61.70
             | 
            
                61.79
             |                     
            
                24.71
             |                                 
            
                94,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2021
             | 
            
                -0.90 / -1.41%
             |             
            
                63.90
             |           
            
                63.90
             |               
            
                62.80
             |                           
            
                63.00
             | 
            
                63.33
             |                     
            
                25.23
             |                                 
            
                97,200
             |            
            
                 
             |                                       
         
    
        
            | 
                2/19/2021
             | 
            
                +3.30 / +5.45%
             |             
            
                64.50
             |           
            
                64.80
             |               
            
                63.00
             |                           
            
                63.90
             | 
            
                64.24
             |                     
            
                25.59
             |                                 
            
                140,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/18/2021
             | 
            
                +3.90 / +6.88%
             |             
            
                58.60
             |           
            
                60.60
             |               
            
                57.50
             |                           
            
                60.60
             | 
            
                60.60
             |                     
            
                24.27
             |                                 
            
                318,600
             |            
            
                 
             |                                       
         
    
        
            | 
                2/17/2021
             | 
            
                +0.70 / +1.25%
             |             
            
                56.90
             |           
            
                57.00
             |               
            
                55.50
             |                           
            
                56.70
             | 
            
                56.24
             |                     
            
                22.70
             |                                 
            
                61,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2021
             | 
            
                +0.70 / +1.27%
             |             
            
                55.40
             |           
            
                56.00
             |               
            
                53.50
             |                           
            
                56.00
             | 
            
                54.53
             |                     
            
                22.42
             |                                 
            
                32,000
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2021
             | 
            
                -0.70 / -1.25%
             |             
            
                56.90
             |           
            
                56.90
             |               
            
                55.30
             |                           
            
                55.30
             | 
            
                55.67
             |                     
            
                22.14
             |                                 
            
                12,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/5/2021
             | 
            
                +0.30 / +0.54%
             |             
            
                56.60
             |           
            
                56.60
             |               
            
                55.40
             |                           
            
                56.00
             | 
            
                56.11
             |                     
            
                22.42
             |                                 
            
                5,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/4/2021
             | 
            
                +0.90 / +1.64%
             |             
            
                56.70
             |           
            
                56.70
             |               
            
                54.00
             |                           
            
                55.70
             | 
            
                55.42
             |                     
            
                22.30
             |                                 
            
                20,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |