FinanceJefferies Downgrades Prothena Corporation (PRTA) After Negative Trial Results Saipriya pradhan1 day ago01 mins Post Content Yahoo Finance Post navigation Previous: Nike’s Turnaround StoryNext: Barclays Maintains Equal Weight Rating on Terreno Realty Corporation (TRNO), Cuts PT Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.