 DUBLIN, Ireland, May 04, 2021 GLOBE NEWSWIRE -- Prothena Corporation plc NASDAQ:PRTA, a late-stage clinical company with expertise in protein dysregulation and a pipeline of investigational therapeutics for rare peripheral amyloid and neurodegenerative diseases, announced today that it will report its first quarter 2021 financial results on Tuesday, May 11, 2021 after the close of the U.S. financial markets. 