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AC Immune SA (ACIU)

AC Immune S.A. is a biotech firm operating at the clinical stage, dedicated to pioneering, formulating, and advancing therapeutic agents and diagnostic tools. Its core mission is addressing neurodegenerative conditions rooted in protein misfolding, both preventatively and therapeutically. Leveraging its proprietary SupraAntigen and Morphomer platforms, the company engineers a range of vaccines, antibodies, and small molecules specifically designed to engage with aberrantly folded proteins implicated across various neurodegenerative disorders. Its pipeline features Crenezumab, a humanized, conformation-specific monoclonal antibody currently undergoing a Phase II clinical prevention trial for Alzheimer's disease (AD). Additionally, AC Immune is advancing ACI-24, an anti-Abeta vaccine candidate, which is in Phase II clinical evaluation for AD and has successfully completed a Phase Ib study for Down syndrome. Other key candidates include ACI-35, an anti-Tau vaccine candidate that has finished Phase Ib clinical assessment, and a Tau-positron emission tomography (PET) imaging tracer, also in Phase II development. Furthermore, the company is engaged in the research and development of small molecule inhibitors to prevent Tau aggregation, targeting AD and various NeuroOrphan indications. Early-stage efforts include discovery and preclinical programs for a spectrum of neurodegenerative diseases, encompassing diagnostic agents aimed at TDP-43, alpha-synuclein, and NLRP3. The company maintains strategic partnerships and licensing agreements with key industry players such as Genentech, Inc., Biogen International GmbH, Janssen Pharmaceuticals, Inc., Life Molecular Imaging SA, Eli Lilly and Company, and WuXi Biologics. Founded in 2003, AC Immune S.A. is headquartered in Lausanne, Switzerland.

Sector: Pharmaceutical Preparations

Industry: Biotechnology

AC Immune S.A. logo

AC Immune S.A.

NASDAQ:ACIUHealthcare
-4.55%$2.31
AH Close$2.31+0.00%vs close
Mkt Cap$229.68M
Float74.67M
O/S99.43M
Inst Own24.6%
Dilution
Historical Data
DateOpenHighLowCloseVolume
Key Metrics
Market Cap$229.68M
Enterprise Value--
P/E Ratio-3.31
Est. Net Cash/Share--
Institutional Ownership24.61%

based on 99.43M shares outstanding

SectorHealthcare
IndustryBiotechnology
ExchangeNASDAQ
CountryCHCH
IPO DateSep 23, 2016
Shares Outstanding99.43M
Float74.67M
Company Overview

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.

Leadership

Andrea Pfeifer

Co-Founder, Chief Executive Officer & Director

Bojana Portmann

SVP of Intellectual Property,Intellectual Property & Business Development

Christopher Roberts

Chief Financial Officer & Vice President of Finance

Francesca Capotosti

Senior Vice President of Research

Employees

133

Country

CH

Sector

Healthcare

Website

acimmune.com

Analyst Coverage
Analyst Coverage
ConsensusBuy
Price Target
No price targets available
Ratings Distribution
BUY
8
HOLD
1
SELL
0
TOTAL9
Insider Trades
InsiderTypeShares
Twyman Roy Ervin profile photoTwyman Roy ErvinGrant/Award38.9K
Zuegel Martin profile photoZuegel MartinGrant/Award77.8K
June Carl Howard profile photoJune Carl HowardGrant/Award38.9K
AGUIAR-LUCANDER RENEE profile photoAGUIAR-LUCANDER RENEEGrant/Award38.9K
Buetler Monika profile photoBuetler MonikaGrant/Award17.8K
Zuegel Martin profile photoZuegel MartinGrant/Award33.1K
Shareholders
24.6%
Institutional
(43)
4.5%
Insiderⓘ
(9)
0.0%
5%+ Owners
(0)
70.9%
Unattributed (incl. retail)ⓘ
Institutional24.6%
Insider4.5%
Unattributed (incl. retail)70.9%
Sources: 13F, Form 4, 13D/13GO/S: 99.4M · checked 26 Oct 2026 · market-data provider
Insiders & Institutional Holders
52-Week Range
$2.10$4.00
$2.31(11th percentile)
Volume
Average Daily Volume191.61K
397.92K today vs 191.61K avg(+108%)

30d Avg

191.61K

60d Avg

176.14K

90d Avg

196.41K

Earnings
Dividend History
No dividend history available
Compliance Status
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