NASDAQ:PRTA Prothena Q2 2026 Earnings Report $8.67 +0.01 (+0.12%) Closing price 07/20/2026 04:00 PM EasternExtended Trading$8.68 +0.01 (+0.06%) As of 05:04 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. ProfileEarnings HistoryForecast Prothena EPS ResultsActual EPSN/AConsensus EPS -$0.39Beat/MissN/AOne Year Ago EPSN/AProthena Revenue ResultsActual RevenueN/AExpected Revenue$0.43 millionBeat/MissN/AYoY Revenue GrowthN/AProthena Announcement DetailsQuarterQ2 2026Date8/3/2026TimeAfter Market ClosesConference Call DateThursday, August 6, 2026Conference Call Time4:00PM ETConference Call ResourcesEarnings HistoryCompany Profile Prothena Earnings HeadlinesProthena (NASDAQ:PRTA) Stock Price Passes Below 200-Day Moving Average - Should You Sell?July 14, 2026 | americanbankingnews.comAnalyzing MediciNova (NASDAQ:MNOV) and Prothena (NASDAQ:PRTA)July 11, 2026 | americanbankingnews.comSpaceX IPO hides a much bigger storyThe SpaceX IPO could be the biggest in history at $1.75 trillion - but the real story isn't the IPO itself. Elon believes what Michael Robinson calls 'Project Unlimited' could unlock $100 trillion in potential growth. One little-known company sits at the center of it all, and most investors have no idea it exists. Position yourself before this company potentially hits the front page. | Weiss Ratings (Ad)Prothena Announces Global Neuroscience Research & Development Collaboration with Celgene for Novel Therapies for Patients with Neurodegenerative DiseasesJune 26, 2026 | finance.yahoo.comProthena Corp. PlcMay 19, 2026 | edition.cnn.comPiper Sandler Sticks to Its Buy Rating for Prothena (PRTA)May 14, 2026 | theglobeandmail.comSee More Prothena Headlines Get Earnings Announcements in your inboxWant to stay updated on the latest earnings announcements and upcoming reports for companies like Prothena? Sign up for Earnings360's daily newsletter to receive timely earnings updates on Prothena and other key companies, straight to your email. Email Address About ProthenaProthena (NASDAQ:PRTA) is a clinical-stage biotechnology company dedicated to the discovery and development of novel therapies for neurodegenerative and rare diseases driven by misfolded proteins. The company’s research focuses on immunotherapies and small molecules designed to target and clear disease-causing protein aggregates. Prothena leverages proprietary protein engineering and antibody discovery platforms to advance candidates through preclinical and clinical stages. The company’s most advanced program is an antibody targeting aggregated alpha-synuclein for the potential treatment of Parkinson’s disease, currently in mid-stage clinical trials. Additional pipeline candidates include therapies for amyloid light chain (AL) amyloidosis and other protein misfolding disorders. Prothena collaborates with global pharmaceutical partners to further develop and commercialize its product candidates, pooling resources and expertise to accelerate research timelines. Founded in 2012 as a spin-out from Elan Corporation, Prothena is headquartered in South San Francisco, California, with research operations in both the United States and Ireland. The company maintains a global focus, engaging regulators and trial sites across North America, Europe and Asia to support its clinical development programs. Prothena’s commitment to addressing high-unmet-need diseases is reflected in its strategic partnerships and research investments. Prothena is led by President and Chief Executive Officer Gene Kinney, whose experience spans decades in the pharmaceutical and biotechnology sectors. Under his leadership, the company has built a multidisciplinary team of scientists, clinicians and commercial experts. Prothena’s board and management team bring deep expertise in protein science, immunology and drug development to guide the company’s mission of bringing new treatment options to patients worldwide. 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