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Compare · ACIU vs MRK

ACIU vs MRK

Side-by-side comparison of AC Immune SA (ACIU) and Merck & Company Inc. (MRK): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both ACIU and MRK operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $295.19B, about 1324.4x ACIU ($222.9M).
  • Over the past year, ACIU is up 4.8% and MRK is up 50.7% - MRK leads by 45.9 points.
  • MRK has been more active in the news (27 items in the past 4 weeks vs 2 for ACIU).
  • MRK has more recent analyst coverage (25 ratings vs 2 for ACIU).
PerformanceACIU+4.78%MRK+50.70%
2025-06-09+0.00%2026-06-08
MetricACIUMRK
Company
AC Immune SA
Merck & Company Inc.
Price
$2.19-2.45%
$119.49-1.15%
Market cap
$222.9M
$295.19B
1M return
-25.38%
+6.40%
1Y return
+4.78%
+50.70%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NASDAQ
NYSE
IPO
2016
News (4w)
2
27
Recent ratings
2
25
ACIU

AC Immune SA

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. The company 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. AC Immune SA was incorporated in 2003 and is headquartered in Lausanne, Switzerland.

MRK

Merck & Company Inc.

Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health segments. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, diabetes, and women's health, as well as vaccine products. The Animal Health segment provides discovers, develops, manufactures, and markets a range of veterinary pharmaceuticals, vaccines, and health management solutions and services, as well as a suite of digitally connected identification, traceability, and monitoring products. The company has collaborations with AstraZeneca PLC; Bayer AG; Eisai Co., Ltd.; and Ridgeback Biotherapeutics. It serves drug wholesalers and retailers, hospitals, and government agencies; managed health care providers, such as health maintenance organizations, pharmacy benefit managers, and other institutions; and physicians and physician distributors, veterinarians, and animal producers. The company has collaboration agreement with Gilead Sciences, Inc. to co-develop and co-commercialize long-acting investigational treatment combinations of Lenacapavir and Islatravir in HIV; Amathus Therapeutics to develop treatments for neurodegenerative diseases; and Linnaeus Therapeutics, Inc. to evaluate LNS8801 in combination with KEYTRUDA for patients with advanced cancer. It also has a collaboration with Biomed X Gmbh for building on ongoing research projects in the fields of oncology (DNA damage response and RNA splicing) and autoimmunity (intestinal epithelial barrier in autoimmune diseases); and a collaboration agreement with NGM Biopharmaceuticals, Inc. to focus primarily on the development of novel medicines for unmet patient needs in retinal and CVM diseases, including heart failure. Merck & Co., Inc. was founded in 1891 and is headquartered in Kenilworth, New Jersey.