Prothena (PRTA) Stock Chart & Stock Price History → Claim Your Complimentary Bitcoin Reward (From Crypto Swap Profits) (Ad) Free PRTA Stock Alerts $21.42 +1.08 (+5.31%) (As of 05/1/2024 ET) Add Compare Share Share ChartStock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSocial MediaStock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSocial Media Prothena Stock Price Performance5 Day Performance+2.64%1 Month Performance-10.56%3 Month Performance-16.88%6 Month Performance-38.73%Year-To-Date Performance-41.06%1 Year Performance-59.21% Receive PRTA Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Prothena and its competitors with MarketBeat's FREE daily newsletter Email Address Ad Crypto Swap ProfitsClaim Your Complimentary Bitcoin RewardMany have already secured their free Bitcoin reward offered by our esteemed guest. How about you? In an effort to spread the word about our upcoming workshop, he's generously offering $10 in Bitcoin (BTC) to participants. Absolutely no strings attached.Secure Your Spot Now PRTA Stock Chart for Thursday, May, 2, 2024 PRTA Chart by TradingView Prothena Share Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/01/2024$20.34$21.42+5.31%$22.00$20.26708,995 shs$1.15 billion04/30/2024$21.19$20.34-4.01%$21.19$20.26530,345 shs$1.09 billion04/29/2024$20.87$21.19+1.53%$22.09$20.91600,639 shs$1.14 billion04/26/2024$20.56$20.87+1.51%$21.18$20.34369,975 shs$1.12 billion04/25/2024$20.56$20.56$20.67$19.65496,352 shs$1.10 billion04/24/2024$20.56$20.56$20.88$20.32341,791 shs$1.10 billion Get the Latest News and Ratings for PRTA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Prothena and its competitors with MarketBeat's FREE daily newsletter. 04/23/2024$21.29$20.56-3.43%$21.70$20.44442,704 shs$1.10 billion04/22/2024$21.16$21.29+0.61%$21.79$20.87356,639 shs$1.14 billion04/19/2024$20.57$21.16+2.87%$21.18$20.42508,532 shs$1.14 billion04/18/2024$21.00$20.57-2.05%$21.26$20.44567,688 shs$1.11 billion04/17/2024$21.34$21.00-1.59%$21.70$20.95465,510 shs$1.13 billion04/16/2024$21.99$21.34-2.96%$22.14$21.06479,715 shs$1.15 billion04/15/2024$22.24$21.99-1.12%$22.44$21.59530,668 shs$1.18 billion04/12/2024$23.28$22.24-4.47%$23.30$21.92526,230 shs$1.19 billion04/11/2024$22.82$23.28+2.02%$23.99$22.21599,106 shs$1.25 billion04/10/2024$23.54$22.82-3.06%$22.93$21.90528,120 shs$1.23 billion04/09/2024$23.68$23.54-0.59%$24.08$22.93464,441 shs$1.26 billion04/08/2024$23.37$23.68+1.33%$24.07$23.39301,269 shs$1.27 billion04/05/2024$23.26$23.37+0.47%$23.82$22.23471,664 shs$1.26 billion04/04/2024$24.26$23.26-4.12%$25.12$22.88760,812 shs$1.25 billion04/03/2024$23.95$24.26+1.29%$24.36$23.23614,986 shs$1.30 billion04/02/2024$26.15$23.95-8.41%$25.36$23.89776,386 shs$1.29 billion04/01/2024$24.77$26.15+5.57%$26.36$24.52616,646 shs$1.40 billion03/29/2024$24.77$24.77$25.34$24.25803,163 shs$1.33 billion03/28/2024$25.16$24.77-1.55%$25.34$24.29803,163 shs$1.33 billion03/27/2024$24.75$25.16+1.66%$25.57$24.46612,086 shs$1.35 billion03/26/2024$25.40$24.75-2.56%$25.87$24.53612,779 shs$1.33 billion03/25/2024$25.92$25.40-2.01%$26.27$24.71393,071 shs$1.36 billion03/22/2024$25.59$25.92+1.29%$26.37$25.18942,937 shs$1.39 billion03/21/2024$25.51$25.59+0.31%$26.45$25.28463,594 shs$1.37 billion03/20/2024$25.09$25.51+1.67%$25.86$24.47423,130 shs$1.37 billion03/19/2024$25.09$25.09$25.59$24.81419,556 shs$1.35 billion03/18/2024$26.07$25.09-3.76%$26.75$24.62689,827 shs$1.35 billion03/15/2024$26.48$26.07-1.55%$26.75$25.941.54 million shs$1.40 billion03/14/2024$28.60$26.48-7.41%$28.53$26.24669,692 shs$1.42 billion03/13/2024$27.54$28.60+3.85%$29.00$27.53489,640 shs$1.54 billion03/12/2024$28.06$27.54-1.85%$28.24$27.05481,789 shs$1.48 billion03/11/2024$30.22$28.06-7.15%$30.85$27.89568,771 shs$1.51 billion03/08/2024$29.30$30.22+3.14%$30.51$29.43366,940 shs$1.62 billion03/07/2024$29.34$29.30-0.14%$29.68$29.10390,080 shs$1.57 billionA.I. is a Tidal Wave - Here’s What to Buy (Ad)The internet generated more wealth than any other innovation in history - creating hundreds of thousands of new millionaires in America alone. Now A.I. could do the same. But if you're buying Microsoft or NVIDIA to profit - you're missing the big picture.Get the name and ticker symbol for free - just click here.03/06/2024$28.35$29.34+3.49%$29.44$28.55412,554 shs$1.58 billion03/05/2024$28.32$28.35+0.11%$28.57$27.52328,382 shs$1.52 billion03/04/2024$28.53$28.32-0.74%$29.33$27.83338,043 shs$1.52 billion03/01/2024$27.59$28.53+3.41%$28.92$27.69607,073 shs$1.53 billion02/29/2024$28.98$27.59-4.80%$29.76$27.54749,471 shs$1.48 billion02/28/2024$30.30$28.98-4.36%$30.36$28.91642,222 shs$1.56 billion02/27/2024$28.18$30.30+7.52%$31.01$28.38827,183 shs$1.63 billion02/26/2024$27.22$28.18+3.53%$28.43$27.20537,535 shs$1.51 billion02/23/2024$26.95$27.22+1.00%$27.64$26.80586,765 shs$1.46 billion02/22/2024$27.05$26.95-0.37%$27.50$26.14642,189 shs$1.45 billion02/21/2024$27.53$27.05-1.74%$27.86$26.60579,536 shs$1.45 billion02/20/2024$28.02$27.53-1.75%$28.30$26.89671,924 shs$1.48 billion02/19/2024$28.02$28.02$30.32$27.461.18 million shs$1.50 billion02/16/2024$28.52$28.02-1.75%$30.32$27.461.18 million shs$1.50 billion02/15/2024$27.29$28.52+4.51%$28.86$27.11689,724 shs$1.53 billion02/14/2024$26.49$27.29+3.02%$27.76$25.89732,303 shs$1.46 billion02/13/2024$29.43$26.49-9.99%$29.27$26.351.06 million shs$1.42 billion02/12/2024$28.38$29.43+3.70%$30.19$28.40797,482 shs$1.58 billion02/09/2024$27.43$28.38+3.46%$28.65$27.551.02 million shs$1.52 billion02/08/2024$26.61$27.43+3.08%$27.75$26.50870,376 shs$1.47 billion02/07/2024$26.31$26.61+1.14%$27.13$25.78676,438 shs$1.43 billion02/06/2024$25.05$26.31+5.03%$26.41$24.51749,143 shs$1.41 billion02/05/2024$25.77$25.05-2.79%$25.59$24.281.55 million shs$1.34 billion02/02/2024$27.37$25.77-5.85%$27.35$25.15872,222 shs$1.38 billion02/01/2024$28.39$27.37-3.59%$28.81$27.29820,209 shs$1.47 billion Related Companies: AbCellera Biologics Stock Chart MannKind Stock Chart Mirum Pharmaceuticals Stock Chart Belite Bio Stock Chart Spyre Therapeutics Stock Chart Homology Medicines Stock Chart Collegium Pharmaceutical Stock Chart Liquidia Stock Chart Ironwood Pharmaceuticals Stock Chart Pacira BioSciences Stock Chart Receive PRTA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Prothena and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:PRTA) was last updated on 5/2/2024 by MarketBeat.com Staff From Our PartnersHave You Seen Elon’s New A.I. Device? (Picture Inside)InvestorPlace😱 This phenomenon is smashing regular market gainsMillPubA.I. is a Tidal Wave - Here’s What to BuyChaikin AnalyticsDid You Get Your Free Bitcoin Yet?Crypto Swap ProfitsForget AI, Imperium Is Expected to Grow 320,00% in 3 YearsBanyan Hill PublishingPOTUS in ‘25 Not Biden/Trump, ButThe Freeport SocietyAI “wealth window” is closing June 25thParadigm Press4 coins to be the “Next Bitcoin”True Market Insiders Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Prothena Co. plc Please log in to your account or sign up in order to add this asset to your watchlist. Get 30 Days of MarketBeat All Access Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools: Best-in-Class Portfolio Monitoring View the latest news, buy/sell ratings, SEC filings and insider transactions for your stocks. Compare your portfolio performance to leading indices and get personalized stock ideas based on your portfolio. Stock Ideas and Recommendations Get daily stock ideas from top-performing Wall Street analysts. Get short term trading ideas from the MarketBeat Idea Engine. View which stocks are hot on social media with MarketBeat's trending stocks report. Advanced Stock Screeners and Research Tools Identify stocks that meet your criteria using seven unique stock screeners. See what's happening in the market right now with MarketBeat's real-time news feed. Export data to Excel for your own analysis. Start Your 30-Day Free Trial 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 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.