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Prothena Corporation plc - Ordinary Shares (NQ:PRTA)

8.860 UNCHANGED
Streaming Delayed Price Updated: 4:00 PM EDT, Sep 14, 2026 Add to My Watchlist
Quote
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Price and Volume

Detailed Quote
Volume 9
Open 8.860
Bid (Size) 8.320 (300)
Ask (Size) 9.370 (100)
Prev. Close 8.860
Today's Range 8.860 - 8.860
52wk Range 7.730 - 11.80
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
News headline image
Prothena to Participate in the H.C. Wainwright 28th Annual Global Investment Conference
September 09, 2026
From Prothena Corporation plc
Via Business Wire
Prothena (NASDAQ:PRTA) Beats EPS but Misses Revenue in Mixed Q2 2026 Results ↗
August 06, 2026
Via Chartmill

Performance

YTD
-3.7%
-3.7%
1 Month
-0.2%
-0.2%
3 Month
+8.7%
+8.7%
6 Month
-3.4%
-3.4%
1 Year
+8.6%
+8.6%

More News

Read More
News headline image
Prothena Reports Second Quarter 2026 Financial Results and Business Highlights
August 06, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena to Report Second Quarter 2026 Financial Results on August 6
July 30, 2026
From Prothena Corporation plc
Via Business Wire
Prothena (NASDAQ:PRTA) Smashes Q1 Estimates on $50 Million Milestone Payment, Shares Steady ↗
May 07, 2026
Via Chartmill
News headline image
Prothena Reports First Quarter 2026 Financial Results and Business Highlights
May 07, 2026
From Prothena Corporation plc
Via Business Wire
Prothena Corporation (NASDAQ:PRTA) Reports Q4 2025 Revenue Miss, Highlights Pipeline Progress and 2026 Cash Guidance ↗
February 19, 2026
Via Chartmill
News headline image
Earnings Scheduled For November 6, 2025 ↗
November 06, 2025
Via Benzinga
News headline image
Prothena to Report First Quarter 2026 Financial Results on May 7
April 30, 2026
From Prothena Corporation plc
Via Business Wire
What's going on in today's after hours session ↗
April 27, 2026
Via Chartmill
News headline image
Prothena Announces Novo Nordisk Obtains Fast Track Designation from the U.S. FDA for Coramitug (PRX004) in ATTR Amyloidosis with Cardiomyopathy
April 27, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Announces Leadership Team Updates
April 10, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Partners Present Data Supporting Next Generation Treatments for Parkinson’s and Alzheimer’s Disease at AD/PD™ 2026
March 21, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Announces Achievement of $50 Million Clinical Milestone Payment from Novo Nordisk Related to Ongoing Phase 3 Clinical Trial for Coramitug (Formerly PRX004) in ATTR Amyloidosis with Cardiomyopathy
March 09, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Announces up to $100 Million Share Repurchase Plan
February 27, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Reports Fourth Quarter and Full Year 2025 Financial Results, and Provides Financial Guidance and Business Highlights
February 19, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena to Report Fourth Quarter and Full Year 2025 Financial Results on February 19, 2026
February 12, 2026
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Announces Board of Directors Update
December 12, 2025
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Announces Poster Presentation on its TDP-43 CYTOPE® Program at Neuroscience 2025
November 19, 2025
From Prothena Corporation plc
Via Business Wire
News headline image
Novo Nordisk's $100 Million Coramitug Shows Promise In Reducing Heart Failure Biomarker ↗
November 12, 2025
Via Benzinga
News headline image
Prothena Highlights Phase 2 Data for Coramitug (Formerly PRX004) Published in Circulation, Official Journal of AHA
November 11, 2025
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena Corp PLC (NASDAQ:PRTA) Reports Q3 2025 Earnings and Key Pipeline Milestones ↗
November 06, 2025
Via Chartmill
News headline image
Prothena Reports Third Quarter 2025 Financial Results and Business Highlights
November 06, 2025
From Prothena Corporation plc
Via Business Wire
News headline image
Prothena to Report Third Quarter 2025 Financial Results on November 6
October 30, 2025
From Prothena Corporation plc
Via Business Wire
News headline image
Deep Dive Into Prothena Corp Stock: Analyst Perspectives (7 Ratings) ↗
October 07, 2025
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 8.860
When was Prothena Corporation plc - Ordinary Shares last traded?
The last trade of Prothena Corporation plc - Ordinary Shares was at 09/14/26 04:00 PM ET
What is the market capitalization of Prothena Corporation plc - Ordinary Shares?
The market capitalization of Prothena Corporation plc - Ordinary Shares is 399.12M
How many shares of Prothena Corporation plc - Ordinary Shares are outstanding?
Prothena Corporation plc - Ordinary Shares has 399M shares outstanding.
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