Prothena (PRTA) Stock Trends and Sentiment $8.46 +0.22 (+2.61%) As of 01:17 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Trends Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Media Mentions Over Time15 Last Week 3 Current Week -80.0%View Trending Media Stocks MarketBeat New Followers Over TimeView Trending Stocks on MarketBeat MarketBeat Searches Over Time Page Views Over Time761 Last Week 806 Current Week +5.9% Recieve Prothena News and Ratings via Email Sign-up to receive the latest news and ratings for PRTA and its competitors with MarketBeat's FREE daily newsletter. Email Address PRTA Social Media Mentions Related Companies and Tools Related Companies Apogee Therapeutics Stock Trends Immunocore Stock Trends Dyne Therapeutics Stock Trends Cidara Therapeutics Stock Trends Twist Bioscience Stock Trends Travere Therapeutics Stock Trends Biohaven Stock Trends Aurinia Pharmaceuticals Stock Trends Schrodinger Stock Trends Evotec Stock Trends Trends Tools Trending StocksTrending Media MentionsHigh Media Sentiment StocksLive News Feed This page (NASDAQ:PRTA) was last updated on 8/18/2025 by MarketBeat.com Staff From Our PartnersFormer CIA Officer Reveals How Gold Saved His Life This isn’t just another gold investing book—it’s a survival playbook written by a former CIA officer trained...Advantage Gold | SponsoredGenerate up to $5,000/month with 10X less money?The secret to retiring without a million-dollar nest egg. I'm talking about generating enough monthly inco...Investors Alley | SponsoredGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. B...Priority Gold | SponsoredWhen the levee breaksThe U.S. Treasury just confirmed it plans to borrow $1.01 trillion this quarter—nearly double what was project...Porter & Company | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredBREAKING: The House just passed 3 pro-crypto bills!THREE pro-crypto bills just passed the House! Now, experts believe altcoin season is officially here. Crypto 101 Media | Sponsored"AI Upgrade" Coming Sept. 1stA new “AI Upgrade” is rolling out on September 1st—and tech leaders are calling it transformational. Softbank’...Behind the Markets | SponsoredBiotech Alert: With news on MPox, RSV, and more, this tiny firm could disrupt a $3B marketA small biotech is stepping into the spotlight with a first-in-class antiviral platform—and it could be one of...Smallcaps Daily | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Prothena Corporation plc Please log in to your account or sign up in order to add this asset to your watchlist. Share Prothena With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
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