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                Biogen Inc. (BIIB $151.44)
    
        
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                Intuitive Surgical Inc. (ISRG $544.21)
    
        
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                AbbVie Inc. (ABBV $211.96)
    
        
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                Eli Lilly and Company (LLY $896.53)
    
        
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                Repligen Corporation (RGEN $150.17)
    
        
 
            Q: Repligen is trading close to the 52-week low and would welcome your analysis of their recent operating performance and market potential looking forward.  Post-pandemic and mindful of competitors in the same space does their stock have any opportunity to excel in the coming year, and if held as a position in a long-term growth portfolio, could you please rank the appeal of Repligen in descending order versus your go-to favorites in the same general space.  Thanks kindly for your thoughts.