AC Immune S.A.·Healthcare

AC Immune Presents New Phase 1 Data Indicating Higher Uptake of TDP-43 PET Tracer ACI-19626 in Patients with ALS Presentation at 2026 TDP43 Summit shows ACI-19626 detects TDP-43 pathology in patients with amyotrophic lateral sclerosis (ALS) Previously reported data also showed detection of TDP-43 in patients with genetically defined frontotemporal dementia (FTD) Underlines potential for precision medicine enabling early diagnosis and intervention in multiple neurodegenerative diseases Lausanne, Switzerland, May 22, 2026 -- AC Immune SA (NASDAQ: ACIU), a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced the presentation of new preliminary data from a Phase 1 trial of its first-in-class TDP-43 positron emission tomography (PET) tracer ACI-19626 showing increased uptake in the brains of patients with amyotrophic lateral sclerosis (ALS). The results presented at the 2026 TDP43 Summit in Madison, Wisconsin, demonstrate that PET scans with ACI-19626 showed tracer uptake significantly higher in key regions of the brain in patients with ALS compared to healthy controls.

Davos Alzheimer's Collaborative Celebrates Andrea Pfeifer, Retiring CEO of AC Immune, for Her Contributions to Alzheimer's Policy, Research and Care

AC Immune (ACIU) appears to have found support after losing some value lately, as indicated by the formation of a hammer chart. In addition to this technical chart pattern, strong agreement among Wall Street analysts in revising earnings estimates higher enhances the stock's potential for a turnaround in the near term.

AC Immune Announces Retirement of CEO Dr Andrea Pfeifer at Upcoming AGM Co-founder and CEO, Dr Andrea Pfeifer, to retire after a distinguished 23-year tenure Board Chair, Martin Zügel, MD, to be appointed interim CEO Dr Pfeifer to serve as an Advisor and Honorary Chair of the Board of Directors, and Co-Chair of the Scientific Advisory Board Company well-positioned to drive short- and long-term value creation via its wholly-owned pipeline and strategic partnerships Robust balance sheet following recently achieved milestones, with multiple further near-term value-inflection milestones Lausanne, Switzerland, 12 May 2026 -- AC Immune SA (Nasdaq: ACIU), a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announces that Dr Andrea Pfeifer has decided to retire from her role as Chief Executive Officer (CEO) of AC Immune at the upcoming Annual General Meeting (AGM) to spend more time with her family. AC Immune's Board of Directors has appointed the Chair, Dr Martin Zügel, to serve as interim CEO while the ongoing search for a permanent successor continues.

AC Immune (ACIU) came out with a quarterly loss of $0.19 per share versus the Zacks Consensus Estimate of a loss of $0.2. This compares to a loss of $0.21 per share a year ago.

AC Immune First Quarter 2026 Financial and Corporate Updates Dosed first subjects in Phase 1 trial of brain-penetrant small molecule NLRP3 inhibitor ACI-19764 with SAD/MAD results in healthy volunteers expected in H2 2026 Initiated final cohort, AD4, in ABATE Phase 1b/2 trial of ACI-24 to treat Alzheimer's Disease triggers milestone payment, as announced separately today Amended Morphomer® Tau collaboration with Lilly reflects growing excitement for targeting intracellular Tau and significant progress with our Morphomer® small molecules Approaching multiple milestones including 12-month interim results of the AD3 cohort in ABATE in Q2 2026 and full data from Part 1 of ACI-7104 VacSYn Phase 2 trial expected in H2 2026 Cash resources of CHF 74.8 million as of March 31, 2026, provide funding into Q4 2027 Lausanne, Switzerland, April 30, 2026 -- AC Immune SA (NASDAQ: ACIU), a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today provided financial and corporate updates for the quarter ended March 31, 2026. Dr. Andrea Pfeifer, CEO of AC Immune SA, commented: “The progress in our collaborations with Takeda and Eli Lilly reflect great confidence in our anti-Abeta active immunotherapy and Tau aggregation inhibitor small molecules, respectively.
AC Immune SA, a clinical stage biopharmaceutical company, discovers, designs, and develops medicines and diagnostic products for the prevention and treatment of neurodegenerative diseases associated with protein misfolding. Its SupraAntigen and Morphomer platforms are designed to generate vaccines, antibodies, and small molecules, which selectively interact with misfolded proteins that are common in a range of neurodegenerative diseases. The company is developing Crenezumab, a humanized, conformation-specific monoclonal antibody, which is in Phase II clinical prevention trial for the treatment of Alzheimer's disease (AD). It is also developing ACI-24, an anti-Abeta vaccine candidate that is in Phase II clinical study for AD, as well as completed Phase Ib clinical study for Down syndrome; ACI-35, an anti-Tau vaccine candidate that has completed Phase Ib clinical study; and Tau- positron emission tomography (PET) imaging tracer, which is in Phase II clinical study. In addition, the company is researching and developing small molecule Tau aggregation inhibitors for AD and NeuroOrphan indications. Further, it has discovery and preclinical stage molecules targeting range of neurodegenerative diseases, which include diagnostics targeting TDP-43, alpha-synuclein, and NLRP3. AC Immune SA has license agreements and collaborations with Genentech, Inc.; Biogen International GmbH; Janssen Pharmaceuticals, Inc.; Life Molecular Imaging SA; Eli Lilly and Company; and WuXi Biologics. The company was incorporated in 2003 and is headquartered in Lausanne, Switzerland.