| 
                 
                    Closing price on 2/26/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    22.45 | 
                 
                
                    | High | 
                    22.45 | 
                 
                
                    | Low | 
                    22.05 | 
                     
                
                    | Volume | 
                    6,790,020 | 
                                 
                
                    | Split-adjusted Price | 
                    5.78 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
MBB Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/26/2019
             | 
            
                -0.40 / -1.78%
             |             
            
                22.45
             |           
            
                22.45
             |               
            
                22.05
             |                           
            
                22.05
             | 
            
                22.16
             |                     
            
                5.78
             |                                 
            
                6,790,020
             |            
            
                 
             |                                       
         
    
        
            | 
                2/25/2019
             | 
            
                -0.05 / -0.22%
             |             
            
                22.60
             |           
            
                22.80
             |               
            
                22.45
             |                           
            
                22.45
             | 
            
                22.55
             |                     
            
                5.88
             |                                 
            
                5,253,740
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2019
             | 
            
                +0.40 / +1.81%
             |             
            
                22.10
             |           
            
                22.90
             |               
            
                22.00
             |                           
            
                22.50
             | 
            
                22.47
             |                     
            
                5.90
             |                                 
            
                7,480,170
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2019
             | 
            
                +0.05 / +0.23%
             |             
            
                22.00
             |           
            
                22.10
             |               
            
                21.95
             |                           
            
                22.10
             | 
            
                22.03
             |                     
            
                5.79
             |                                 
            
                7,998,970
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/20/2019
             | 
            
                +0.10 / +0.46%
             |             
            
                21.80
             |           
            
                22.05
             |               
            
                21.80
             |                           
            
                22.05
             | 
            
                21.99
             |                     
            
                5.78
             |                                 
            
                10,123,737
             |            
            
                 
             |                                       
         
    
        
            | 
                2/19/2019
             | 
            
                -0.15 / -0.68%
             |             
            
                22.10
             |           
            
                22.10
             |               
            
                21.90
             |                           
            
                21.95
             | 
            
                22.04
             |                     
            
                5.75
             |                                 
            
                13,646,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/18/2019
             | 
            
                +0.05 / +0.23%
             |             
            
                22.10
             |           
            
                22.20
             |               
            
                22.05
             |                           
            
                22.10
             | 
            
                22.11
             |                     
            
                5.79
             |                                 
            
                6,780,490
             |            
            
                 
             |                                       
         
    
        
            | 
                2/15/2019
             | 
            
                -0.05 / -0.23%
             |             
            
                22.10
             |           
            
                22.15
             |               
            
                22.00
             |                           
            
                22.05
             | 
            
                22.07
             |                     
            
                5.78
             |                                 
            
                4,795,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/14/2019
             | 
            
                +0.10 / +0.45%
             |             
            
                22.00
             |           
            
                22.10
             |               
            
                21.95
             |                           
            
                22.10
             | 
            
                22.05
             |                     
            
                5.79
             |                                 
            
                5,052,420
             |            
            
                 
             |                                       
         
    
        
            | 
                2/13/2019
             | 
            
                0.00 / 0.00%
             |             
            
                22.00
             |           
            
                22.10
             |               
            
                21.95
             |                           
            
                22.00
             | 
            
                22.02
             |                     
            
                5.77
             |                                 
            
                7,843,680
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/12/2019
             | 
            
                -0.05 / -0.23%
             |             
            
                22.15
             |           
            
                22.15
             |               
            
                21.70
             |                           
            
                22.00
             | 
            
                22.03
             |                     
            
                5.77
             |                                 
            
                8,286,220
             |            
            
                 
             |                                       
         
    
        
            | 
                2/11/2019
             | 
            
                +0.20 / +0.92%
             |             
            
                21.95
             |           
            
                22.10
             |               
            
                21.90
             |                           
            
                22.05
             | 
            
                22.03
             |                     
            
                5.78
             |                                 
            
                4,238,890
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2019
             | 
            
                -0.05 / -0.23%
             |             
            
                21.80
             |           
            
                21.95
             |               
            
                21.70
             |                           
            
                21.85
             | 
            
                21.85
             |                     
            
                5.73
             |                                 
            
                3,947,520
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2019
             | 
            
                +0.10 / +0.46%
             |             
            
                22.00
             |           
            
                22.15
             |               
            
                21.85
             |                           
            
                21.90
             | 
            
                21.96
             |                     
            
                5.74
             |                                 
            
                7,363,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2019
             | 
            
                +0.50 / +2.35%
             |             
            
                21.30
             |           
            
                21.85
             |               
            
                21.20
             |                           
            
                21.80
             | 
            
                21.64
             |                     
            
                5.71
             |                                 
            
                6,956,410
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2019
             | 
            
                +0.25 / +1.19%
             |             
            
                21.00
             |           
            
                21.35
             |               
            
                20.80
             |                           
            
                21.30
             | 
            
                21.03
             |                     
            
                5.58
             |                                 
            
                4,211,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/28/2019
             | 
            
                -0.10 / -0.47%
             |             
            
                21.10
             |           
            
                21.20
             |               
            
                20.95
             |                           
            
                21.05
             | 
            
                21.05
             |                     
            
                5.52
             |                                 
            
                2,898,640
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2019
             | 
            
                -0.05 / -0.24%
             |             
            
                21.20
             |           
            
                21.30
             |               
            
                21.05
             |                           
            
                21.15
             | 
            
                21.18
             |                     
            
                5.54
             |                                 
            
                3,410,930
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2019
             | 
            
                +0.50 / +2.42%
             |             
            
                20.75
             |           
            
                21.20
             |               
            
                20.70
             |                           
            
                21.20
             | 
            
                20.93
             |                     
            
                5.56
             |                                 
            
                5,012,140
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2019
             | 
            
                +0.10 / +0.49%
             |             
            
                20.55
             |           
            
                20.80
             |               
            
                20.50
             |                           
            
                20.70
             | 
            
                20.69
             |                     
            
                5.42
             |                                 
            
                2,483,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2019
             | 
            
                -0.40 / -1.90%
             |             
            
                21.00
             |           
            
                21.05
             |               
            
                20.60
             |                           
            
                20.60
             | 
            
                20.83
             |                     
            
                5.40
             |                                 
            
                5,700,760
             |            
            
                 
             |                                       
         
    
        
            | 
                1/21/2019
             | 
            
                +1.25 / +6.33%
             |             
            
                20.50
             |           
            
                21.10
             |               
            
                20.30
             |                           
            
                21.00
             | 
            
                20.70
             |                     
            
                5.50
             |                                 
            
                10,050,870
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2019
             | 
            
                0.00 / 0.00%
             |             
            
                19.85
             |           
            
                19.90
             |               
            
                19.60
             |                           
            
                19.75
             | 
            
                19.74
             |                     
            
                5.18
             |                                 
            
                3,121,270
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2019
             | 
            
                +0.30 / +1.54%
             |             
            
                19.45
             |           
            
                20.00
             |               
            
                19.45
             |                           
            
                19.75
             | 
            
                19.83
             |                     
            
                5.18
             |                                 
            
                6,675,580
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2019
             | 
            
                -0.05 / -0.26%
             |             
            
                19.60
             |           
            
                19.75
             |               
            
                19.35
             |                           
            
                19.45
             | 
            
                19.55
             |                     
            
                5.10
             |                                 
            
                3,205,890
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2019
             | 
            
                +0.50 / +2.63%
             |             
            
                19.00
             |           
            
                19.65
             |               
            
                19.00
             |                           
            
                19.50
             | 
            
                19.37
             |                     
            
                5.11
             |                                 
            
                6,045,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/14/2019
             | 
            
                -0.25 / -1.30%
             |             
            
                19.15
             |           
            
                19.30
             |               
            
                18.90
             |                           
            
                19.00
             | 
            
                19.06
             |                     
            
                4.98
             |                                 
            
                4,804,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2019
             | 
            
                -0.10 / -0.52%
             |             
            
                19.35
             |           
            
                19.45
             |               
            
                19.15
             |                           
            
                19.25
             | 
            
                19.33
             |                     
            
                5.04
             |                                 
            
                3,589,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2019
             | 
            
                0.00 / 0.00%
             |             
            
                19.35
             |           
            
                19.50
             |               
            
                19.25
             |                           
            
                19.35
             | 
            
                19.35
             |                     
            
                5.07
             |                                 
            
                2,885,650
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2019
             | 
            
                +0.50 / +2.65%
             |             
            
                19.00
             |           
            
                19.45
             |               
            
                18.95
             |                           
            
                19.35
             | 
            
                19.25
             |                     
            
                5.07
             |                                 
            
                5,964,110
             |  
            
                 
             |                                                              
             
    
         
    
    
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