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Prothena Corporation plc - Ordinary Shares (NQ:PRTA)

8.265 -0.295 (-3.45%)
Streaming Delayed Price Updated: 3:52 PM EDT, Aug 28, 2025 Add to My Watchlist
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Price and Volume

Detailed Quote
Volume 1,524,381
Open 8.220
Bid (Size) 8.260 (9)
Ask (Size) 8.270 (3)
Prev. Close 8.560
Today's Range 8.050 - 8.580
52wk Range 4.320 - 22.83
Shares Outstanding 45,047,449
Dividend Yield N/A
Chart for (: )
Intraday 1 Week 1 Month 3 Month 1 Year 3 Year 5 Year

Top News

More News
Prothena to Participate in the Cantor Fitzgerald Global Healthcare Conference
From Prothena Corporation plc
Via Business Wire
Prothena Reports Non-Competitive Brain Swelling Rates In Early Alzheimer's Study
Prothena reported ASCENT trial data showing strong amyloid plaque reduction but high ARIA-E rates for Alzheimer's drug PRX012, prompting a shift in focus. 
Via Benzinga

Performance

YTD
-39.5%
-39.5%
1 Month
+20.3%
+20.3%
3 Month
+79.7%
+79.7%
6 Month
-43.2%
-43.2%
1 Year
-61.3%
-61.3%

More News

Read More
What 4 Analyst Ratings Have To Say About Prothena Corp
Via Benzinga
Prothena Provides Update on PRX012 and Announces Results from the Phase 1 ASCENT Clinical Program
From Prothena Corporation plc
Via Business Wire
9 Analysts Assess Prothena Corp: What You Need To Know
Via Benzinga
Earnings Scheduled For August 4, 2025
Via Benzinga
A Glimpse of Prothena Corp's Earnings Potential
Via Benzinga
Novo Nordisk Commits To Advancing Prothena Corp-Developed Drug Into Late Stage Trial: Retail Turns Hopeful
Via Stocktwits
Topics Earnings
Prothena Announces that Novo Nordisk Will Advance Coramitug (Formerly PRX004) into Phase 3 Development for ATTR Amyloidosis with Cardiomyopathy
From Prothena Corporation plc
Via Business Wire
Prothena Q2 Revenue Drops 97%
Via The Motley Fool
Topics Intellectual Property
Prothena Reports Second Quarter 2025 Financial Results and Business Highlights
From Prothena Corporation plc
Via Business Wire
Prothena to Report Second Quarter 2025 Financial Results on August 4
From Prothena Corporation plc
Via Business Wire
8 Analysts Assess Prothena Corp: What You Need To Know
Via Benzinga
Prothena Shares Get A Boost After Company Slashes Workforce, Lowers 2025 Cash Burn Forecast
Via Stocktwits
Topics Workforce
Prothena Announces Corporate Restructuring
From Prothena Corporation plc
Via Business Wire
Prothena’s Partner Roche to Advance Prasinezumab into Phase III Development for Early-Stage Parkinson's Disease
From Prothena Corporation plc
Via Business Wire
Williams Companies To Rally Over 11%? Here Are 10 Top Analyst Forecasts For Wednesday
Via Benzinga
Here are the top movers in Tuesday's session.
Via Chartmill
12 Health Care Stocks Moving In Tuesday's Intraday Session
Via Benzinga
Let's have a look at the top gainers and losers in the middle of the day of today's session.
Via Chartmill
There are notable gap-ups and gap-downs in today's session.
Via Chartmill
PTC Therapeutics To Rally Around 61%? Here Are 10 Top Analyst Forecasts For Tuesday
Via Benzinga
Expert Outlook: Prothena Corp Through The Eyes Of 5 Analysts
Via Benzinga
Stay updated with the stocks that are on the move in today's pre-market session.
Via Chartmill
PDD Holdings Posts Weak Results, Joins EHang Holdings And Other Big Stocks Moving Lower In Tuesday's Pre-Market Session
Via Benzinga

Frequently Asked Questions

Is 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 8.265
When was Prothena Corporation plc - Ordinary Shares last traded?
The last trade of Prothena Corporation plc - Ordinary Shares was at 08/28/25 03:52 PM ET
What is the market capitalization of Prothena Corporation plc - Ordinary Shares?
The market capitalization of Prothena Corporation plc - Ordinary Shares is 372.32M
How many shares of Prothena Corporation plc - Ordinary Shares are outstanding?
Prothena Corporation plc - Ordinary Shares has 372M shares outstanding.
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