Show Notes
Part 3 of 4 of our series with Roy Maute, CEO and co-founder of Pheast Therapeutics.
In this episode of The Biotech Startups Podcast, we dive into Roy Maute's journey from academic scientist to biotech entrepreneur, exploring the founding and acquisition of Ab Initio Biotherapeutics and his subsequent roles at Forty Seven Inc. and Gilead Sciences. Roy reflects on the lasting influence of Irv Weissman's hands-off, trust-driven lab culture at Stanford and how it shaped his philosophy on building teams. Roy shares how he co-founded Ab Initio with colleagues from Chris Garcia's and Brian Kobilka's labs, navigating early-stage challenges like seed funding, a Pfizer collaboration, and managing a lean team of 10. He explains why the company ultimately chose acquisition over raising a major round, and how Ligand Pharmaceuticals' interest in their directed evolution technology brought that chapter to a successful close. Roy also discusses stepping into a biomarker strategy role at Forty Seven Inc., and what it was like to witness the company's $4.9 billion acquisition by Gilead — all as COVID lockdowns began.
Key Topics Covered:
- Leadership Styles: Why Irv Weissman's hands-off management shaped Roy's own vision for building teams
- Co-Founding Ab Initio: Assembling a founding team, securing seed funding, and running a scrappy 10-person lab
- Pfizer Collaboration: Balancing startup autonomy with the accountability of a big pharma partnership
- Acquisition Over Fundraising: Why selling to Ligand Pharmaceuticals was the right exit over raising more capital
- Forty Seven & Gilead: Joining a rocket ship mid-flight and learning translational science through a $4.9B acquisition
Resources & Articles
- Immune Checkpoint Inhibitors https://tlcr.amegroups.org/article/view/4780/html
- Overview of PD‑1 Pathway Blockade and Biomarkers of Response https://www.nature.com/articles/s41416-022-01743-4
- Magrolimab in Cancer: NCI Drug Dictionary Entry https://www.cancer.gov/publications/dictionaries/cancer-drug/def/magrolimab
- Clinical Study of Magrolimab in Solid Tumors (example of ongoing CD47 checkpoint work) https://pubmed.ncbi.nlm.nih.gov/40140179/
Organizations & People
- Pfizer: https://www.pfizer.com
- Ligand Pharmaceuticals: https://www.ligand.com
- Gilead Sciences: https://www.gilead.com
- Irving Weissman: https://en.wikipedia.org/wiki/Irving_Weissman
- Kenneth Lin: https://www.linkedin.com/in/kslin
- Andy Kruse: https://www.linkedin.com/in/andrew-kruse-0517b116
- Tim Springer: https://www.linkedin.com/in/timothy-springer
- Chris Garcia: https://www.linkedin.com/in/k-christopher-garcia-964651139
- Brian Kobilka: https://www.nobelprize.org/prizes/chemistry/2012/kobilka/facts/




