sharethestock

Prothena Corporation plc Ordinary Shares (PRTA)

XNAS: PRTA · USD
$8.43at end of selection
−18.55%

−$1.92 per share

Oct 13, 2025 – Oct 12, 2026

Edit dates
→

Intraday times are shown in Eastern Time.

15-min delayed · Oct 12, 2026Drag to select ↔

Prothena Corporation plc Ordinary Shares (PRTA) price history

Prothena Corporation plc Ordinary Shares trades under PRTA on XNAS. Over Oct 13, 2025 – Oct 12, 2026, the available closing prices moved from $10.35 to $8.43, a change of −18.55%.

Prices through . 15-min delayed. Split-adjusted price change in USD; dividends are not included. These are historical observations, not a live quote.

Select dates in the chart to measure a price change, compare other assets, or calculate a hypothetical position’s gain or loss.

Browse all stock and ETF charts →