Prothena Corporation plc - Ordinary Shares (NQ:PRTA)Price and VolumeDetailed Quote
Top NewsMore NewsPerformance
52-Week Range
28.3% below 52-week high
8.460
7.7352W Low
11.8052W High
1 Week
9.1% below 1-week high
8.191W Low
9.301W High
Prothena Corporation plc - Ordinary Shares (PRTA) traded between $7.73 and $11.80 over the past 52 weeks and last traded at $8.46, 28.3% below its 52-week high. Over the past week it ranged between $8.19 and $9.30.
Past 12 Months
1W
-$0.38
1M
+$0.13
3M
-$0.01
6M
-$2.06
YTD
-$0.74
1Y
-$2.20
PRTA was -20.6% over the past year, -19.6% over six months, -8.0% year to date, -4.3% in the last week.
12 Months vs Market
PRTA
DIA
SPY
QQQ
IWM
Over the past 12 months PRTA returned -20.6% versus DIA (Dow) +13.4%, SPY (S&P 500) +15.9%, QQQ (Nasdaq 100) +19.7% and IWM (Russell 2000) +9.8%.
Volume & Liquidity
0.16× 3-mo avg
Today 79,176
3-mo avg 487.1K
1W
1M
3M
6M
YTD
1Y
PRTA most recently traded 79,176 shares against a 3-month average daily volume of 487.1K. More NewsRead More
Earnings Scheduled For November 6, 2025 ↗
November 06, 2025
What's going on in today's after hours session ↗
April 27, 2026
Prothena Announces Leadership Team Updates
April 10, 2026
Prothena Announces up to $100 Million Share Repurchase Plan
February 27, 2026
Prothena Announces Board of Directors Update
December 12, 2025
Frequently Asked QuestionsIs Prothena Corporation plc - Ordinary Shares publicly traded?
Yes, Prothena Corporation plc - Ordinary Shares is publicly traded.
What exchange does Prothena Corporation plc - Ordinary Shares trade on?
Prothena Corporation plc - Ordinary Shares trades on the Nasdaq Stock Market
What is the ticker symbol for Prothena Corporation plc - Ordinary Shares?
The ticker symbol for Prothena Corporation plc - Ordinary Shares is PRTA on the Nasdaq Stock Market
What is the current price of Prothena Corporation plc - Ordinary Shares?
The current price of Prothena Corporation plc - Ordinary Shares is 8.460
When was Prothena Corporation plc - Ordinary Shares last traded?
The last trade of Prothena Corporation plc - Ordinary Shares was at 10/16/26 09:59 AM ET
What is the market capitalization of Prothena Corporation plc - Ordinary Shares?
The market capitalization of Prothena Corporation plc - Ordinary Shares is 381.10M
How many shares of Prothena Corporation plc - Ordinary Shares are outstanding?
Prothena Corporation plc - Ordinary Shares has 381M shares outstanding.
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