AC Immune (ACIU) News Today $2.85 -0.04 (-1.38%) Closing price 05/21/2026 04:00 PM EasternExtended Trading$2.86 +0.00 (+0.18%) As of 05/21/2026 04:10 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 Massive. Learn more. Add Compare Share Share Headlines Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock ACIU Latest News All Sources Trusted Sources MarketBeat Barchart Benzinga Bloomberg GlobeNewswire GuruFocus MarketWatch Motley Fool NASDAQ PR Newswire Reuters Seeking Alpha TalkMarkets The Street TipRanks The Wall Street Journal Wall Street Zen Yahoo Finance Source Sentiment refers to the positivity or negativity of each headline according to our language processing algorithm. Sentiment All Sentiments Very Positive Positive Neutral Negative Very Negative Most Recent May 2026 April 2026 March 2026 February 2026 January 2026 December 2025 November 2025 October 2025 September 2025 August 2025 July 2025 June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024 January 2024 December 2023 November 2023 October 2023 September 2023 August 2023 July 2023 June 2023 Time Period AC Immune (NASDAQ:ACIU) CEO Sells $27,900.00 in StockMay 19 at 5:07 AM | insidertrades.comTop Executive Move at AC Immune SA Sparks Fresh Investor BuzzMay 18, 2026 | tipranks.comAC Immune Sets June AGM and Reshapes Leadership as Long-Serving CEO RetiresMay 15, 2026 | tipranks.comDavos Alzheimer's Collaborative Celebrates Andrea Pfeifer, Retiring CEO of AC Immune, for Her Contributions to Alzheimer's Policy, Research and CareMay 15, 2026 | globenewswire.comAC Immune CEO and Co-Founder Andrea Pfeifer to Retire at June 11 AGM; Board Chair Martin Zügel Named Interim ChiefMay 12, 2026 | tipranks.comAC Immune Announces Retirement of CEO Dr Andrea Pfeifer at Upcoming AGMMay 12, 2026 | globenewswire.comHC Wainwright Increases Earnings Estimates for AC ImmuneMay 6, 2026 | marketbeat.comHC Wainwright Has Positive View of AC Immune FY2027 EarningsMay 5, 2026 | marketbeat.comBTIG Research Reaffirms "Buy" Rating for AC Immune (NASDAQ:ACIU)May 4, 2026 | marketbeat.comAC Immune (NASDAQ:ACIU) Announces Earnings ResultsApril 30, 2026 | marketbeat.comAC Immune Posts Q1 2026 Update, Extends Cash Runway and Advances Neurodegeneration PipelineApril 30, 2026 | tipranks.comAC Immune Triggers $12 Million Takeda Milestone as Final ABATE Cohort Starts in Alzheimer’s TrialApril 30, 2026 | tipranks.comAC Immune First Quarter 2026 Financial and Corporate UpdatesApril 30, 2026 | globenewswire.comAC Immune Initiates Final Cohort in Ongoing Phase 1b/2 ABATE Trial of Anti-Abeta Active Immunotherapy to Treat Alzheimer's DiseaseApril 30, 2026 | globenewswire.comAC Immune (ACIU) to Release Quarterly Earnings on WednesdayApril 22, 2026 | marketbeat.comTop Executive Makes Notable Move With Fresh AC Immune Stock SaleApril 16, 2026 | tipranks.comAnalysts Are Bullish on Top Healthcare Stocks: Insmed (INSM), AC Immune SA (ACIU)April 13, 2026 | theglobeandmail.comLeerink Says AC Immune (ACIU) Eli Lilly Tau Program Amendment Is Great NewsApril 12, 2026 | finance.yahoo.comWhy AC Immune Stock Zoomed Almost 15% Higher TodayApril 7, 2026 | fool.comAC Immune stock surges on amended Lilly collaboration dealApril 7, 2026 | za.investing.comWhy AC Immune Stock Zoomed Almost 15% Higher TodayApril 7, 2026 | fool.comAC Immune SA: AC Immune Announces Amendment to Morphomer Tau License and Collaboration Agreement with LillyApril 7, 2026 | finanznachrichten.deAC Immune revises collaboration with Eli Lilly on tau-targeting Alzheimer’s therapyApril 7, 2026 | msn.comAC Immune rises after amending licensing deal with LillyApril 7, 2026 | msn.comAC Immune Secures Amended Tau Drug Collaboration with Lilly, Adds CHF 10 Million UpfrontApril 7, 2026 | tipranks.comAC Immune Announces Amendment to Morphomer ® Tau License and Collaboration Agreement with LillyApril 7, 2026 | globenewswire.comAC Immune FY 2025 Results: Eyeing ACI-7104 CatalystsMarch 21, 2026 | seekingalpha.comAC Immune Presents First In vivo Images of Brain TDP-43 Pathology from Phase 1 Trial of PET tracer ACI-19626, at AD/PDTM 2026March 19, 2026 | finance.yahoo.comAC Immune: Advancing Neurology Pipeline and Imminent Alzheimer’s Vaccine Data Support Buy RatingMarch 16, 2026 | tipranks.comAC Immune SA: AC Immune Reports Full Year 2025 Financial Results and Provides a Corporate UpdateMarch 13, 2026 | finanznachrichten.deAC Immune Posts 2025 Results, Sharpens Pipeline Focus and Extends Cash Runway to 2027March 13, 2026 | tipranks.comAC Immune Reports Full Year 2025 Financial Results and Provides a Corporate UpdateMarch 13, 2026 | globenewswire.comAC Immune Announces Upcoming Industry Symposium on Parkinson’s Disease and Presentation at AD/PD™ 2026March 5, 2026 | markets.businessinsider.comAC Immune Doses First Participant in Phase 1 Trial of NLRP3 Inhibitor ACI-19764February 24, 2026 | tipranks.comAC Immune says partner J&J pauses enrollment in mid-stage trial for Alzheimer’s drugFebruary 18, 2026 | msn.comAC Immune Says Janssen Pauses Enrollment in Alzheimer’s Trial but Confirms Cash Runway to Q3 2027February 17, 2026 | tipranks.comRetail investors are AC Immune SA's (NASDAQ:ACIU) biggest owners and were rewarded after market cap rose by US$53m last weekJanuary 9, 2026 | finance.yahoo.comAC Immune: Maintaining 'Buy' Rating On Next Steps For ACI-7104.056 Development In PDDecember 15, 2025 | seekingalpha.comAC Immune’s Parkinson’s disease candidate shows positive Phase 2 resultsDecember 12, 2025 | msn.comWhy is AC Immune stock up over 23% today?December 11, 2025 | msn.comAC Immune surges on positive mid-stage trial data for Parkinson’s drugDecember 11, 2025 | msn.comAC Immune Trial Shows Early Signs Immunotherapy May Slow Parkinson'sDecember 11, 2025 | benzinga.comAC Immune Trial Shows Early Signs Immunotherapy May Slow Parkinson'sDecember 11, 2025 | benzinga.comPromising Advancements in Parkinson’s Treatment: AC Immune’s ACI-7104 Vaccine Shows Groundbreaking ResultsDecember 11, 2025 | tipranks.comAC Immune stock rises after positive Parkinson’s disease trial dataDecember 11, 2025 | investing.comAC Immune Positive Interim Phase 2 Data on ACI-7104.056 Support Potential Slowing of Progression of Parkinson’s DiseaseDecember 11, 2025 | finance.yahoo.comAC Immune Reports Promising Phase 2 Results for Parkinson’s TherapyDecember 11, 2025 | tipranks.comAC Immune Reports Positive Interim Phase 2 Data for ACI-7104.056 Indicating Potential to Slow Parkinson's Disease ProgressionDecember 11, 2025 | quiverquant.comQAC Immune Positive Interim Phase 2 Data on ACI-7104.056 Support Potential Slowing of Progression of Parkinson's DiseaseDecember 11, 2025 | globenewswire.comAC Immune to Present at the Jefferies 2025 London Healthcare ConferenceNovember 11, 2025 | markets.businessinsider.com Get AC Immune News Delivered to You Automatically Sign up to receive the latest news and ratings for ACIU and its competitors with MarketBeat's FREE daily newsletter. 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ACIU Media Mentions By Week ACIU Media Sentiment Learn about the media sentiment score. Each headline receives a score ranging from 2 (good news) to -2 (bad news). Our company news sentiment scores track the average news sentiment of articles about each company over the most recent 7 days in order to identify companies that are receiving positive press. ACIU News Sentiment▼0.830.40▲Average Medical News Sentiment ACIU News Coverage Learn about the media coverage comparison. We track news headlines from hundreds of news outlets and tag them by company. This chart compares the number of articles about this company in the last seven days compared with the average number of articles about this company on a typical week. ACIU Articles This Week▼53▲ACIU Articles Average Week Get the Latest News and Ratings for ACIU and Related Stocks Enter your email address to receive the latest news and analysts' ratings for AC Immune and its competitors. 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