Logos Capital
1 Letterman Drive, Building C, Suite C3-350, San Francisco, CA, 94129, United States
Overview
Logos Capital is a fundamental biotechnology-focused fund that seeks to combine in-house data analytics with scientific and clinical expertise 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 ideas and uncorrelated-market returns. They combine scientific diligence with their statistical modeling of clinical trials to achieve the highest levels of conviction in each position.
- Total investments
- 104
- Lead investments
- 5
- Investments · 12mo
- 10
- Active investors
- 1
Sector focus
- Biotechnology
- Hedge Funds
Investment portfolio
- Expedition Therapeutics
Participated · Series B · Aug 2026
Expedition Therapeutics is developing next-generation oral small molecule therapies targeting inflammatory and respiratory diseases, with its lead program EXPD-101, a once-daily DPP1 inhibitor, currently in a global Phase 2 trial for COPD. The company reported that EXPD-101 was well tolerated in Phase 1 with no dose-limiting toxicities and showed dose-proportional pharmacokinetics supporting once-daily dosing. The first patient has been dosed in the Phase 2 COPD study, marking the company’s transition into mid-stage clinical development. Expedition combines translational expertise and clinical development experience with a platform for in-licensing global innovation. The recent $115 million Series B financing led by General Atlantic is intended to fund EXPD-101 through Phase 2, expand the company’s pipeline of therapies for inflammatory diseases, and further its research discovery efforts. Expedition is based in San Francisco and has announced board expansion tied to the financing.
- Serapha Bio
Participated · Series A · Jun 2026
Serapha Bio launched to develop a one-and-done gene-editing treatment for Alpha-1 Antitrypsin Deficiency (AATD). The company emerged via a reverse merger with Boundless Bio and simultaneous financing that totaled $230 million. Founding investors RA Capital and RTW Investments arranged a $138 million Series A and an additional $92 million tied to the reverse merger. Boundless Bio, founded in 2019, had researched extrachromosomal DNA and faced difficulties with its lead program prior to the merger. Serapha also negotiated a licensing deal with a Chinese drug company as part of its launch and capital plan.
- ADCendo
Participated · Series C · Apr 2026
Adcendo is advancing a pipeline of first- and potential best-in-class antibody-drug conjugates, integrating novel targets and optimized linker-payload combinations. The company is progressing three ADC programs: ADCE-T02 (Tissue Factor) in a Phase I Tiffany-01 cohort expansion across multiple solid tumors, ADCE-D01 (uPARAP) in Phase 1 dose escalation and expansion for soft tissue sarcoma and other mesenchymal cancers, and ADCE-B05 (undisclosed target) in preclinical evaluation and planned dose escalation in squamous cell carcinomas. Founded in 2017, Adcendo is headquartered in Copenhagen with operations in Boston, Massachusetts, and is led by a team with extensive ADC development and commercialization experience. The recent $75 million Series C financing is intended to fund the programs through upcoming clinical milestones and data readouts. No revenue or other operating metrics were disclosed in the provided articles.
- Beacon Biosignals
Participated · Series B · Apr 2026
Beacon Biosignals develops FDA-cleared wearable EEG technology combined with advanced AI to capture and analyze real-world neural data. Its platform provides clinicians and biopharma partners with objective measures of brain function intended to accelerate research, improve diagnostics and guide new treatments across neurology, psychiatry and sleep medicine. The company is led by CEO Jacob Donoghue and is based in Boston, MA. Beacon reported cumulative funding of over $132M following the Series B extension. The company plans to use the new proceeds to further scale at-home EEG deployments and expand its analytics capabilities to support diagnostics, clinical trials and precision medicine.
- Pinnacle Medicines
Participated · Series B · Mar 2026
Pinnacle Medicines is developing a generation of oral peptide medicines designed to deliver biologic-level efficacy with oral dosing. The company combines physics-based molecular simulations, artificial intelligence–enabled design, and advanced peptide chemistry in a proprietary discovery platform. Pinnacle is advancing a pipeline of potential first- and best-in-class oral peptide programs targeting validated pathways in immunology and cardiometabolic diseases. The recent $89 million Series B will support progressing lead programs toward clinical proof of concept and expanding R&D capabilities. Pinnacle has raised $134 million to date following incubation by OrbiMed and other healthcare specialist investors. The company operates out of Shanghai and Doylestown, Pennsylvania.
Team
Graham Walmsley
Co-Founder and Managing Member
LinkedIn