NASDAQ:PRTA Prothena Q1 2024 Earnings Report $8.21 -0.22 (-2.61%) Closing price 09/12/2025 04:00 PM EasternExtended Trading$8.22 +0.01 (+0.12%) As of 09/12/2025 04:57 PM 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 Polygon.io. Learn more. ProfileEarnings HistoryForecast Prothena EPS ResultsActual EPS-$1.34Consensus EPS -$1.21Beat/MissMissed by -$0.13One Year Ago EPS-$0.89Prothena Revenue ResultsActual Revenue$0.05 millionExpected Revenue$3.75 millionBeat/MissMissed by -$3.70 millionYoY Revenue GrowthN/AProthena Announcement DetailsQuarterQ1 2024Date5/8/2024TimeAfter Market ClosesConference Call DateWednesday, May 8, 2024Conference Call Time4:00PM ETUpcoming EarningsProthena's Q3 2025 earnings is scheduled for Tuesday, November 11, 2025, with a conference call scheduled at 4:00 PM ET. Check back for transcripts, audio, and key financial metrics as they become available.Conference Call ResourcesPress Release (8-K)Quarterly Report (10-Q)Earnings HistoryCompany ProfilePowered by Earnings DocumentsPress Release(8-K)Quarterly report(10-Q) Prothena Earnings HeadlinesAnalysts Set Prothena Corporation plc (NASDAQ:PRTA) Price Target at $19.75September 11 at 2:47 AM | americanbankingnews.comProthena (NASDAQ:PRTA) Price Target Lowered to $11.00 at JMP SecuritiesSeptember 4, 2025 | americanbankingnews.comWhy Trump’s “Smart Dollar” could rewrite the rulesMUST SEE: Donald Trump's Radical Overhaul of the U.S. Dollar Congress just approved President Trump's latest plans for the dollar – and they're so bold that one central bank chair says we haven't seen anything like it in almost a century. Our Wall Street insider says it's the start of a once-in-a-lifetime investing opportunity, IF you act now.September 13 at 2:00 AM | Stansberry Research (Ad)Prothena Corporation plc: Prothena to Participate in the Cantor Fitzgerald Global Healthcare ConferenceAugust 28, 2025 | finanznachrichten.deProthena to Participate in the Cantor Fitzgerald Global Healthcare ConferenceAugust 28, 2025 | businesswire.comProthena Provides Update on PRX012 and Announces Results from the Phase 1 ASCENT Clinical ProgramAugust 27, 2025 | businesswire.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.View Prothena ProfileRead more More Earnings Resources from MarketBeat Earnings Tools Today's Earnings Tomorrow's Earnings Next Week's Earnings Upcoming Earnings Calls Earnings Newsletter Earnings Call Transcripts Earnings Beats & Misses Corporate Guidance Earnings Screener Earnings By Country U.S. Earnings Reports Canadian Earnings Reports U.K. Earnings Reports Latest Articles Celsius Stock Surges After Blowout Earnings and Pepsi DealWhy DocuSign Could Be a SaaS Value Play After Q2 EarningsWhy Broadcom's Q3 Earnings Were a Huge Win for AVGO BullsAffirm Crushes Earnings Expectations, Turns Bears into BelieversAmbarella's Earnings Prove Its Edge AI Strategy Is a WinnerWhat to Watch for From D-Wave Now That Earnings Are DoneDICKS’s Sporting Goods Stock Dropped After Earnings—Is It a Buy? 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