Prothena (PRTA) Options Chain & Prices $8.79 0.00 (0.00%) Closing price 06/5/2026 04:00 PM EasternExtended Trading$8.76 -0.02 (-0.28%) As of 06:17 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock PRTA Put and Call Options List 1/21/2028 1/15/2027 12/18/2026 9/18/2026 7/17/2026 6/18/2026 Options Date Put and Call Options Put Options Call Options Options Type All In The Money Out of The Money Moneyness With Volume Without Volume All Volume Strike Price Min Strike Price Max Export ExpiresStrike PriceClose PricePut/CallVolumeVolume AskVolume BidOpen InterestImplied VolatilityDeltaTrades6/18/2026$9.00$0.508Put761 - 313(+4)57.16% (+3.91%)-0.5751273End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies Zai Lab Options Bausch Health Cos Options Mesoblast Options Tyra Biosciences Options Trevi Therapeutics Options Ocular Therapeutix Options Aurinia Pharmaceuticals Options Intellia Therapeutics Options Stoke Therapeutics Options Compass Pathways Options Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:PRTA) was last updated on 6/8/2026 by MarketBeat.com Staff. From Our PartnersThis ‘Starburst’ Could Be Bigger Than the SpaceX IPOMarc Chaikin - the analyst who called Nvidia before its historic run - says a tech firm labeled 'the unseen wi...Chaikin Analytics | SponsoredWhy I'm NOT Buying the SpaceX IPO (And What I'm Buying Instead)The media's calling it "the biggest IPO in Wall Street history." But I'm not buying it. Institutions got into ...Decentralized Masters | SponsoredThis is the worst news for stocks in 50 yearsGoldman Sachs and Morgan Stanley are issuing a rare warning: what's ahead for U.S. stocks could be the worst e...TradeSmith | SponsoredStranded On The Flood Plains of HistoryThe petrodollar arrangement that Kissinger brokered in 1974 officially expired in June 2024. China has slashed...Porter & Company | SponsoredTrump Takes Emergency Action - Plus Elon Musk's New VentureElon Musk has quietly launched a new venture - one that has nothing to do with rockets, EVs, or Neuralink. Tru...Altimetry | SponsoredIn 30 days, you'll wish you'd read this emailA small power equipment company with $1.5 billion in orders is flying under the radar - but not for long. When...Behind the Markets | SponsoredTrump's gold order: the announcement they won't put on the front pageOn August 15, 1971, Nixon interrupted prime-time television and ended the gold standard in 15 minutes - no deb...Reagan Gold Group | SponsoredTiny Nasdaq Firm Lands €13.9 Million Semiconductor DealOne small Nasdaq-listed company just landed a 13.9 million euro contract tied to a new advanced-node semicondu...Finplays | 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: Your Password: Log In Email Me a Login Link or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Choose a Password: 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.