
Logos, the Greek word for logic and discourse, emphasizes our philosophy of seeking empirical truth and rigorous scientific diligence across our investment endeavors.
Seeking Logos
Logos Capital is a fundamental biotechnology-focused investment partnership that combines scientific and financial expertise with in-house clinical trial analytics to identify transformative therapies in healthcare. Based in San Francisco, Logos combines expertise across medical, scientific, and statistical disciplines to expand the depth of diligence in identifying compelling investment themes and opportunities.

Our Mission
Build a world-class biotechnology investment partnership, focused on generating superior long-term returns for our investors and financing innovation that will meaningfully advance the standard of care for patients
Success in drug development is contingent on more than just scientific research. Our process focuses on event tracking, clinical trial underwriting, risk management, and a culture rooted in technical diligence and continuous improvement. We seek to holistically assess an asset from its preclinical data through commercialization potential to determine intrinsic value.


Identify
We rigorously track and diligence all private and public companies in our sector, looking for best in class or first in class companies with attractive valuations.

Invest
New technologies and therapeutic approaches are leading to functional cures, expanding patient access, extending life expectancy and redefining the meaning of ‘value.’ We continually screen for opportunities that are clear advances to the current treatment paradigm and standard of care.

Deliver Value
Our mandate is to deliver best-in-class returns to our investors. To do so, we thoroughly underwrite each investment, incorporating multiple layers of risk management to ensure our rationale, our “logos”, is perpetually aligned with those supporting us.
Team
The Logos team is composed of trained experts in the field of chemistry, engineering, biology, and data science. We are committed to supporting true innovation through investing directly in companies pushing the boundaries of medical science and patient care.
Investment

Dr. Arsani William, MD, MBA
Managing Partner /
Chief Investment Officer

Dr. Graham Walmsley, MD, PhD
General Partner

Dr. Ed Zhong, PhD
General Partner

Dr. Yuqi Wang, PhD
Analyst
Operations

Derek Gould, JD
General Counsel /
Chief Compliance Officer

Chris Zellner
Director of Operations

Cynthia (Cindy) Goldsmith, CPA
Director of Finance & Accounting

Elana Sears
Head of Marketing & Investor Relations

Bonny Chen
Executive Assistant
Office Manager
View All

Dr. Arsani William, MD, MBA
Managing Partner /
Chief Investment Officer

Dr. Graham Walmsley, MD, PhD
General Partner

Dr. Ed Zhong, PhD
General Partner

Derek Gould, JD
General Counsel /
Chief Compliance Officer

Chris Zellner
Director of Operations

Cynthia (Cindy) Goldsmith, CPA
Director of Finance & Accounting

Cynthia (Cindy) Goldsmith, CPA
Director of Finance & Accounting

Elana Sears
Head of Marketing & Investor Relations

Dr. Yuqi Wang, PhD
Analyst

Bonny Chen
Executive Assistant
Office Manager
Investments

Denotes public company

Denotes board seat

Denotes acquired

858 THERAPEUTICS INC

Affinivax

Aligos Therapeutics
Aligos is developing targeted, curative therapies for hepatologic diseases and viral infections, including chronic hepatitis B virus, non-alcoholic steatohepatitis and hepatocellular carcinoma.

ALX Oncology
ALX Oncology is a clinical-stage immuno-oncology company developing therapies that block the CD47 checkpoint mechanism, which is exploited by cancer cells to evade the immune system.

Annexon Biosciences
Annexon Biosciences is a pioneer in developing C1q inhibitors designed to treat multiple complement-medicated autoimmune and neurodegenerative diseases.

Athira Pharma
Athira Pharma is a clinical stage therapeutics company developing regenerative therapies for neurological diseases such as Alzheimer's disease and Parkinson's disease.

Avidity Biosciences
Avidity Biosciences is a privately held biotech company pioneering Antibody Oligonucleotide Conjugates (AOC™). AOCs combine the tissue selectivity of monoclonal antibodies and the precision of oligonucleotide-based therapeutics to overcome barriers to the delivery of oligonucleotides and target genetic drivers of disease.

Black Diamonds Therapeutics
Black Diamond Therapeutics is a Precision Oncology Medicine Company Pioneering the Discovery of Small Molecule, Tumor-Agnostic Therapies

Biomea Fusion

Boundless BIO INC

C4 Therapeutics
C4 Therapeutics is committed to transforming the treatment of cancer, neurological, and other important diseases with novel early stage therapies that eliminate disease-causing proteins. C4’s approach to medicine harnesses the innate machinery of the cell to attack disease and potentially bring deep and durable responses to patients.

Centessa Pharmaceuticals

Century Therapeutics

Cogent Biosciences
Cogent Biosciences is a biotechnology company developing therapies for genetically driven diseases.

Cullinan Oncology

Day One Biopharmaceuticals

Design Therapeutics

Dyne Therapeutics
Dyne Therapeutics is building a leading muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases.

Edgewise Therapeutics

Element Biosciences INC

Enliven Therapeutics

Flame Biosciences
Flame Biosciences is a clinical stage company focused on the research, development and commercialization of transformative therapies for cancer and other inflammatory conditions.

Gennao Bio
Gennao Bio is a privately held genetic medicines company developing first-in-class targeted nucleic acid therapeutics utilizing a proprietary gene monoclonal antibody (GMAB) platform technology.

GH Research

Graphite Bio

IconOVir Bio

Ikena Oncology

InstilBio
Instil Bio is a cell therapy company focused on solid tumors developing patient specific immunotherapies in oncology, allowing the patient’s own immune system to be harnessed to fight cancer.

Interius

Janux

Kinnate Biopharma
Kinnate Biopharma is a biopharmaceutical company advancing a pipeline of precision oncology therapeutics to treat patients with genomically defined vulnerabilities. Kinnate design and develop selective small molecules with the mission to provide the right drug to the right patient.

Kymera Therapeutics
Kymera Therapeutics is pioneering a transformative new approach to treating previously untreatable diseases, advancing the field of targeted protein degradation by accessing the body's innate protein recycling machinery to degrade rather than inhibit dysregulated, disease-causing proteins.

LianBio

Nkarta Therapeutics
Nkarta seeks to improve upon the efficacy of cell therapy, making it more potent, better tolerated and more rapidly available to a broad population of patients with a variety of hematologic and solid tumor malignancies.

Nikang Therapeutics INC

Nuvalent INC

Olema Pharmaceuticals
Olema is a preclinical biotechnology company developing new drugs for the treatment and prevention of estrogen receptor (ER) positive breast cancer. At Olema we leverage the exquisite knowledge of the molecular action of the ER to design compounds that are superior to both the current drugs and those in development.

Passage Bio
Passage Bio is a genetic medicines company developing transformative therapies for the treatment of rare monogenic central nervous system diseases

Pliant Therapeutics
Pliant Therapeutics is a clinical stage biopharmaceutical company unraveling and targeting the key biological pathways driving fibrosis.

Rain Therapeutics
Rain Therapeutics Inc. is a privately-held biotechnology company developing targeted therapies for patients with cancer.

Rayze Bio

Repare Therapeutics
Repare Therapeutics is developing new, precision oncology drugs for patients that target specific vulnerabilities of tumor cells. Its approach integrates insights from several fields of cell biology including DNA repair and synthetic lethality. Repare’s platform combines a proprietary, high throughput, CRISPR‐enabled gene editing target discovery method with high‐resolution protein crystallography, computational biology and clinical informatics.

Scorpion Therapeutics

Shoreline Biosciences

SomaLogic

Talaris Therapeutics
Talaris is developing a single-dose cell therapy that seeks to produce durable immune tolerance to both an individual’s own tissues as well as donated organs from another individual.

VelosBio
VelosBio is a clinical-stage biopharmaceutical company committed to developing novel, first-in-class, ROR1-directed therapeutics to transform the lives of patients with cancer.

Ventyx Biosciences

Verve Therapeutics

Visen Pharmaceuticals
VISEN Pharmaceuticals is committed to the treatment of endocrine-related diseases, introducing the world's leading treatment methods and drugs into the China market, and hoping to provide more Chinese patients quick access to the world's most advanced and reliable treatment solutions. In 2018, VISEN Pharmaceuticals was formed by Ascendis Pharma A/S (Nasdaq: ASND) and an investor syndicate led by Vivo Capital (along with participation by Sofinnova Investments), to develop and commercialize endocrinology therapies in Greater China, which includes mainland China, Hong Kong, Macau, and Taiwan.

Vividion Therapeutics
Contact Us
Logos Capital
1 Letterman Drive
Building C, Suite C3-350
San Francisco, CA 94129+1 (415) 801-4660