PRTA
PRTA
IE00B91XRN20
Prothena Corporation plc
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Valuation & History

Quarterly trend of key valuation metrics

Metric
Current (TTM) TTM Baseline
Q2 '26 30.06.2026
Q1 '26 31.03.2026
Q4 '25 31.12.2025
Market & Enterprise Value
Market Cap
453.82M EUR
506.58M EUR
515.91M EUR
514.1M EUR
Enterprise Value
160.81M EUR
225.37M EUR
194.1M EUR
214.95M EUR
Valuation Multiples
Trailing P/E
--
--
--
--
Forward P/E
-5.82x
--
--
--
Price to Sales
8.32x
9.29x
8.9x
74.99x
Price to Book
1.59x
1.77x
1.65x
1.83x
EV/Revenue
2.95x
4.13x
3.35x
31.35x
EV/EBITDA
-2.72x
--
--
--
Price to FCF (P/FCF)
--
--
--
--
EV/FCF
--
--
--
--
FCF Yield
-11.95%
-11.98%
-15.78%
-21.46%
ende