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                    Closing price on 6/7/2021
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                    | Open | 12.20 |  
                    | High | 13.50 |  
                    | Low | 11.20 |  
                    | Volume | 386,400 |  
                    | Split-adjusted Price | 11.60 |  
                
             | 
 |  PSI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/7/2021 | -0.70 / -5.69% | 12.20 | 13.50 | 11.20 | 11.60 | 12.34 | 11.60 | 386,400 |   |  
            | 6/4/2021 | +1.10 / +9.82% | 11.50 | 12.30 | 11.50 | 12.30 | 12.21 | 12.30 | 567,300 |   |  			
            | 6/3/2021 | +1.00 / +9.80% | 10.20 | 11.20 | 10.20 | 11.20 | 11.17 | 11.20 | 577,800 |   |  
            | 6/2/2021 | +0.90 / +9.68% | 10.20 | 10.20 | 9.70 | 10.20 | 10.07 | 10.20 | 531,200 |   |  			
            | 6/1/2021 | +0.80 / +9.41% | 8.90 | 9.30 | 8.90 | 9.30 | 9.30 | 9.30 | 130,100 |   |  
            | 5/31/2021 | +0.70 / +8.97% | 8.30 | 8.50 | 8.30 | 8.50 | 8.48 | 8.50 | 191,000 |   |  			
            | 5/28/2021 | +0.70 / +9.86% | 7.10 | 7.80 | 7.10 | 7.80 | 7.42 | 7.80 | 50,300 |   |  
            | 5/27/2021 | -0.10 / -1.39% | 7.20 | 7.30 | 7.10 | 7.10 | 7.19 | 7.10 | 15,300 |   |  			
            | 5/26/2021 | 0.00 / 0.00% | 7.20 | 7.20 | 7.00 | 7.20 | 7.11 | 7.20 | 17,300 |   |  
            | 5/25/2021 | -0.10 / -1.37% | 7.30 | 7.30 | 7.00 | 7.20 | 7.22 | 7.20 | 11,500 |   |  			
            | 5/24/2021 | 0.00 / 0.00% | 7.30 | 7.40 | 7.20 | 7.30 | 7.29 | 7.30 | 7,000 |   |  
            | 5/21/2021 | 0.00 / 0.00% | 7.30 | 7.30 | 7.00 | 7.30 | 7.13 | 7.30 | 28,600 |   |  			
            | 5/20/2021 | +0.30 / +4.29% | 6.70 | 7.30 | 6.70 | 7.30 | 7.13 | 7.30 | 26,100 |   |  
            | 5/19/2021 | -0.10 / -1.41% | 6.90 | 7.00 | 6.60 | 7.00 | 6.75 | 7.00 | 22,500 |   |  			
            | 5/18/2021 | -0.10 / -1.39% | 7.00 | 7.20 | 7.00 | 7.10 | 7.02 | 7.10 | 12,700 |   |  
            | 5/17/2021 | -0.10 / -1.37% | 7.10 | 7.30 | 7.00 | 7.20 | 7.15 | 7.20 | 11,400 |   |  			
            | 5/14/2021 | +0.10 / +1.39% | 7.20 | 7.30 | 7.10 | 7.30 | 7.13 | 7.30 | 15,300 |   |  
            | 5/13/2021 | 0.00 / 0.00% | 7.20 | 7.30 | 7.10 | 7.20 | 7.13 | 7.20 | 26,700 |   |  			
            | 5/12/2021 | -0.30 / -4.00% | 7.20 | 7.50 | 7.20 | 7.20 | 7.22 | 7.20 | 6,300 |   |  
            | 5/11/2021 | 0.00 / 0.00% | 7.50 | 7.50 | 7.20 | 7.50 | 7.43 | 7.50 | 8,000 |   |  			
            | 5/10/2021 | +0.10 / +1.35% | 7.30 | 7.70 | 7.20 | 7.50 | 7.40 | 7.50 | 8,100 |   |  
            | 5/7/2021 | -0.10 / -1.33% | 7.50 | 7.50 | 7.20 | 7.40 | 7.22 | 7.40 | 4,600 |   |  			
            | 5/6/2021 | 0.00 / 0.00% | 7.50 | 7.90 | 7.50 | 7.50 | 7.65 | 7.50 | 22,100 |   |  
            | 5/5/2021 | +0.20 / +2.74% | 7.20 | 7.60 | 7.00 | 7.50 | 7.43 | 7.50 | 13,000 |   |  			
            | 5/4/2021 | -0.20 / -2.67% | 7.40 | 7.40 | 6.80 | 7.30 | 7.06 | 7.30 | 11,400 |   |  
            | 4/29/2021 | 0.00 / 0.00% | 7.50 | 8.00 | 7.00 | 7.50 | 7.23 | 7.50 | 7,800 |   |  			
            | 4/28/2021 | +0.20 / +2.74% | 7.30 | 8.00 | 7.30 | 7.50 | 7.62 | 7.50 | 4,900 |   |  
            | 4/27/2021 | 0.00 / 0.00% | 7.80 | 7.80 | 6.70 | 7.30 | 6.78 | 7.30 | 13,700 |   |  			
            | 4/26/2021 | -0.60 / -7.59% | 7.50 | 7.50 | 7.30 | 7.30 | 7.35 | 7.30 | 10,500 |   |  
            | 4/23/2021 | +0.10 / +1.28% | 8.40 | 8.40 | 7.10 | 7.90 | 7.37 | 7.90 | 20,300 |   |  |