Buy call

PRTA

Prothena Corporation plc

Published May 29, 2026 · graded over ~2 months

What this call did

May 29, 2026 to Jul 28, 2026

This call returned

-14.2%

S&P 500, same dates

-1.8%

Difference

-12.4%

May 29, 2026 to Jul 28, 2026 · n=1 of 126 · vs S&P 500 · saved before results. Past performance does not predict future results. Market research, not investment advice.

All 126 insider-buy calls published May 11, 2026 to Jul 2, 2026, each measured from its published entry against the S&P 500 over its own 60 days: average +11.5% vs S&P +1.1%. Best +74.6%, worst -48.3%, 24 of 126 lost money. As of Sep 7, 2026.

Every call, and what it did

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Research, not personalized investment advice. Everyone sees the same ideas at the same time. How this works