David W. Shen
Founder and CEO, Propeller Bio @ Propeller Bio
About
Dr. David W. Shen is a leading expert in antibody and therapeutic protein development, with a proven track record of advancing drug pipelines from discovery to clinical proof-of-concept. As Founder and CEO of Proteologix, he led the company’s breakthrough work in bispecific antibody therapeutics for immunology and inflammation (I&I) including autoimmune, culminating in its $850 million acquisition by Johnson & Johnson in 2024. Previously, Dr. Shen held executive roles at NGM Biopharmaceuticals, Teva Pharmaceuticals, Merck, and Amgen. Throughout his career, he played a key role in advancing several antibody drug candidates from research to clinical development and regulatory approval, including evolucumab (anti-PCSK9), romosozumab, (anti-sclerostin) and denosumab (anti-RANKL). Innovatively blending his scientific and industrial vision, he has discovered new technologies, holding 20 patents or applications and more than 20 peer-reviewed publications. In February 2025, he embarked on his newest venture as Founder and CEO of Propeller Bio. Specialties: Therapeutic antibody and protein drug discovery, engineering, and profiling including bispecific antibodies or bifunctional proteins. Experienced in phage display, hybridoma, protein/mAb engineering, humanization, optimization, and characterization. Developed a novel mammalian display of antibody IgGs. Leads process development and CMC group including immunoassay and potency assay.
United States
San Francisco Bay Area
Biotechnology
Biologics, Monoclonal Antibodies, Therapeutic Proteins, Optimization, Engineering, Drug Discovery, Protein Chemistry, Biotechnology, Antibodies, Neuroscience, Oncology, Biochemistry, Cell, Assay Development, Pharmaceutical Industry, Technology Transfer, Biomarkers, Molecular Biology, Clinical Research, Clinical Trials
Experience

Founder and CEO
Propeller Bio
California, United States

Founder and CEO
United States
Proteologix is an innovative biotech company focused on immunology and inflammation diseases (I&I). We discover and develop highly differentiated multi-specific, multi-functional antibody drugs to break efficacy ceiling and, at the same time, to extend the half-life of the molecules for less frequent dosing. We are a clinical ready company with lead programs ready for clinical trials in atopic dermatitis, asthma, and other I&I diseases. Proteologix was recently acquired by J&J for $850M plus milestone in less than three years after initiation of the company in 2021.

Board Member and Chairman of Scientific Advisory Board
Elpiscience Biopharmaceuticals, Lilly Asia Venture backed comapny
Shanghai/San Francisco

Senior Vice President, Head of Biologics Research, Bioanalyticals, and CMC
South San Francisco
David is a member of Executive Committee at NGM that sets the strategy for first-in-class, innovative biologics and the pipeline portfolio. He is head of biologic research (antibody and protein sciences), bioanalytical assays (PK and immunogenicity assays), process development,and CMC up to commercialization.

Global VP, Global Head of Biologics Development
Vice President, Global Head of Biologics Development in the Branded Products R&D at TEVA Pharmaceuticals, David is a critical member of the leadership team that sets the strategy for BioSimilars, BioBetters and innovative biologics including their pipeline portfolio. In this capacity, he oversees research, process development, bioassay Center of Excellence (including but not limited to functional assays, PK assays, potency assays, immunogenicity assays), and CMC up to phase III clinical materials.

Board member, Managing Director, Head of Joint Venture
Teva-Lonza Biopharmarceuticals

Executive Director, Head of Biologics Research and GlycoFi, Merck Research Laboratory
Merck & Co. USA
Prior to TEVA, David worked with Merck serving as Executive Director of Biologics Research and GlycoFi overseeing two research sites with more than 100 staff supporting all 7 therapeutic areas across all research labs. His department worked on innovative therapeutic antibody, protein based drug and follow-on biologics (biosimilars and biobetters). David led his leadership team to develop a clear strategy to position Merck Biologics in the right direction for growth through balancing their portfolio with both innovative and follow-on biologics and championing for corporate partnerships to further balance the Biologics Portfolio.

Director of Protein Sciences, Head of Amgen SF site
His professional career started at Amgen where David held positions of increasing responsibilities and most recently became Director and Head of Protein Science Department at the San Francisco research facility and led a group working on therapeutic antibody, protein based drug discovery for oncology, inflammation, metabolic disorders, and neurosciences. Before moving to San Francisco, he was a group leader for antibody engineering, where they played key roles for more than 8 antibodies currently in early and late stage clinical trials. His group developed a novel Mammalian Antibody Display technology for antibody discovery/selection, which for the first time allows functional display of full length IgG on mammalian cell surface.
David W. Shen's Contact Information
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