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            | 
                    Closing price on 7/22/2019
                 |  |  
    
        |           
                
                    | Open | 3.00 |  
                    | High | 3.10 |  
                    | Low | 3.00 |  
                    | Volume | 5,100 |  
                    | Split-adjusted Price | 3.10 |  
                
             | 
 |  PSB Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/22/2019 | -0.10 / -3.13% | 3.00 | 3.10 | 3.00 | 3.10 | 3.01 | 3.10 | 5,100 |   |  
            | 7/19/2019 | 0.00 / 0.00% | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 0 |   |  			
            | 7/18/2019 | 0.00 / 0.00% | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 0 |   |  
            | 7/17/2019 | 0.00 / 0.00% | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 200 |   |  			
            | 7/16/2019 | +0.10 / +3.23% | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 3.20 | 500 |   |  
            | 7/15/2019 | +0.10 / +3.33% | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 800 |   |  			
            | 7/12/2019 | 0.00 / 0.00% | 3.00 | 3.10 | 3.00 | 3.00 | 3.03 | 3.00 | 2,200 |   |  
            | 7/11/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 7/10/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 800 |   |  
            | 7/9/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 30 |   |  			
            | 7/8/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 400 |   |  
            | 7/5/2019 | -0.10 / -3.33% | 3.00 | 3.00 | 2.90 | 2.90 | 2.96 | 2.90 | 2,100 |   |  			
            | 7/4/2019 | +0.10 / +3.45% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 1,200 |   |  
            | 7/3/2019 | -0.10 / -3.33% | 3.00 | 3.00 | 2.90 | 2.90 | 2.98 | 2.90 | 1,600 |   |  			
            | 7/2/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  
            | 7/1/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 6/28/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  
            | 6/27/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 700 |   |  			
            | 6/26/2019 | 0.00 / 0.00% | 2.90 | 3.00 | 2.90 | 3.00 | 2.91 | 3.00 | 1,000 |   |  
            | 6/25/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 6/24/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 2,200 |   |  
            | 6/21/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 6/20/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 900 |   |  
            | 6/19/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 6/18/2019 | +0.10 / +3.45% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  
            | 6/17/2019 | -0.10 / -3.33% | 3.00 | 3.00 | 2.90 | 2.90 | 2.99 | 2.90 | 5,300 |   |  			
            | 6/14/2019 | +0.10 / +3.45% | 3.00 | 3.00 | 2.90 | 3.00 | 2.96 | 3.00 | 2,600 |   |  
            | 6/13/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 1,000 |   |  			
            | 6/12/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 0 |   |  
            | 6/11/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 900 |   |  |