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                    Closing price on 4/27/2021
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        |           
                
                    | Open | 7.80 |  
                    | High | 7.80 |  
                    | Low | 6.70 |  
                    | Volume | 13,700 |  
                    | Split-adjusted Price | 7.30 |  
                
             | 
 |  PSI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 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 |   |  
            | 4/22/2021 | -0.70 / -8.24% | 8.00 | 8.40 | 7.70 | 7.80 | 7.74 | 7.80 | 55,200 |   |  			
            | 4/20/2021 | -0.10 / -1.16% | 8.60 | 8.60 | 7.80 | 8.50 | 8.27 | 8.50 | 19,725 |   |  
            | 4/19/2021 | +0.30 / +3.61% | 9.00 | 9.00 | 8.40 | 8.60 | 8.52 | 8.60 | 10,900 |   |  			
            | 4/16/2021 | -0.70 / -7.78% | 8.40 | 8.60 | 8.20 | 8.30 | 8.41 | 8.30 | 55,500 |   |  
            | 4/15/2021 | -0.20 / -2.17% | 9.20 | 9.30 | 9.00 | 9.00 | 9.11 | 9.00 | 68,200 |   |  			
            | 4/14/2021 | +0.20 / +2.22% | 9.00 | 9.20 | 8.90 | 9.20 | 9.10 | 9.20 | 64,200 |   |  
            | 4/13/2021 | +0.10 / +1.12% | 9.00 | 9.50 | 9.00 | 9.00 | 9.13 | 9.00 | 187,900 |   |  			
            | 4/12/2021 | +0.10 / +1.14% | 8.80 | 8.90 | 8.60 | 8.90 | 8.80 | 8.90 | 99,900 |   |  
            | 4/9/2021 | 0.00 / 0.00% | 8.80 | 8.80 | 8.60 | 8.80 | 8.69 | 8.80 | 51,700 |   |  			
            | 4/8/2021 | +0.10 / +1.15% | 8.70 | 9.00 | 8.70 | 8.80 | 8.83 | 8.80 | 53,700 |   |  
            | 4/7/2021 | 0.00 / 0.00% | 8.70 | 8.70 | 8.30 | 8.70 | 8.57 | 8.70 | 168,900 |   |  			
            | 4/6/2021 | -0.10 / -1.14% | 8.70 | 8.70 | 8.30 | 8.70 | 8.42 | 8.70 | 60,900 |   |  
            | 4/5/2021 | 0.00 / 0.00% | 8.90 | 9.00 | 8.10 | 8.80 | 8.74 | 8.80 | 46,700 |   |  			
            | 4/2/2021 | +0.70 / +8.64% | 8.10 | 8.90 | 8.10 | 8.80 | 8.80 | 8.80 | 135,700 |   |  
            | 4/1/2021 | +0.70 / +9.46% | 7.40 | 8.10 | 7.30 | 8.10 | 7.91 | 8.10 | 241,300 |   |  			
            | 3/31/2021 | -0.30 / -3.90% | 7.80 | 7.90 | 7.40 | 7.40 | 7.55 | 7.40 | 36,100 |   |  
            | 3/30/2021 | +0.60 / +8.45% | 7.20 | 7.80 | 7.10 | 7.70 | 7.50 | 7.70 | 87,800 |   |  			
            | 3/29/2021 | -0.10 / -1.39% | 7.20 | 7.50 | 7.10 | 7.10 | 7.40 | 7.10 | 1,000 |   |  
            | 3/26/2021 | -0.20 / -2.70% | 7.30 | 7.30 | 7.20 | 7.20 | 7.27 | 7.20 | 15,800 |   |  			
            | 3/25/2021 | 0.00 / 0.00% | 7.40 | 7.40 | 7.30 | 7.40 | 7.34 | 7.40 | 700 |   |  
            | 3/24/2021 | -0.10 / -1.33% | 7.10 | 7.40 | 7.10 | 7.40 | 7.21 | 7.40 | 18,900 |   |  			
            | 3/23/2021 | 0.00 / 0.00% | 7.60 | 7.60 | 7.20 | 7.50 | 7.49 | 7.50 | 10,260 |   |  
            | 3/22/2021 | +0.10 / +1.35% | 7.40 | 7.60 | 7.40 | 7.50 | 7.44 | 7.50 | 11,000 |   |  			
            | 3/19/2021 | +0.10 / +1.37% | 7.30 | 7.40 | 7.00 | 7.40 | 7.29 | 7.40 | 23,400 |   |  
            | 3/18/2021 | 0.00 / 0.00% | 7.00 | 7.30 | 7.00 | 7.30 | 7.08 | 7.30 | 13,570 |   |  			
            | 3/17/2021 | +0.10 / +1.39% | 7.20 | 7.30 | 7.20 | 7.30 | 7.27 | 7.30 | 15,700 |   |  
            | 3/16/2021 | -0.20 / -2.70% | 7.20 | 7.40 | 7.20 | 7.20 | 7.21 | 7.20 | 15,075 |   |  |