Prothena Corporation plc

PRTA· NASDAQ· Health Care· Pharmaceuticals, Biotechnology & Life Sciences

$8.29-2.13%

2026-11-02

Financials

Valuation Metrics

Prothena Corporation plc's Market Cap is $434M. At end of 2025 it was $514M. Ranked #2769 of 3,115 in US market (top 89%), #1217 of 1,472 on NASDAQ (top 83%), #220 of 265 in Pharmaceuticals, Biotechnology & Life Sciences (top 83%) by Market Cap.

Investment Metrics(as of 2026-11-02)

Metric	Value	Rank
Size
Market Cap	$434M	US#2,769/3,115 Sec#220/265
Revenue	$55M	US#2,735/3,115 Sec#141/265
Net Income	$-44M	US—/3,115 Sec—/265
Total Assets	$303M	US#2,902/3,115 Sec#205/265
Net Assets	$287M	US#2,529/3,115 Sec#158/265
Value
P/B	1.51x	US#1,027/3,115 Sec#44/265
P/S	7.96x	US#2,642/3,115 Sec#108/265
FCF Yield	-13.99%	US—/3,115 Sec—/265
Profitability
ROE	-15.33%	US#2,425/3,115 Sec#91/265
ROA	-14.54%	US#2,737/3,115 Sec#117/265
Op. Margin	-115.09%	US#2,720/3,115 Sec#125/265
Revenue Growth	427.32%	US#30/3,115 Sec#15/265
Financial Health
Debt Ratio	5.47%	US#42/3,115 Sec#16/265
Total Debt	$7M	US#2,862/3,115 Sec#207/265
FCF	$-61M	US#2,550/3,115 Sec#119/265
Cash	$288M	US#1,444/3,115 Sec#83/265
Current Ratio	25.05x	US#97/3,115 Sec#15/265
Performance
1Y Return	-22.88%	US#2,172/3,115 Sec#175/265
1M Return	-0.84%	US#1,112/3,115 Sec#78/265
From 52W High	-29.75%	US#1,637/3,115 Sec#100/265
1Y MDD	-31.28%	US#1,396/3,115 Sec#73/265
Trading
Volume	457,572 shares	US#1,760/3,115 Sec#183/265
Trading Value	$4M	US#2,523/3,115 Sec#208/265
Per Share
EPS	$-0.84	US—/3,115 Sec—/265
BPS	$5.48	US#2,236/3,115 Sec#121/265