$8.62 as of 2026-07-20 · Healthcare · Biotechnology · Stock
PRTA (Prothena Corporation plc) is the #1400 most-held security of 2,636 tracked on Upside Invest, held by 1 retail investor (0% of tracked portfolios), at an average allocation of 2.6% of their portfolio.
Related Healthcare securities: LLY, UNH, HIMS, NVO, JNJ
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