About David Llewellyn
David Llewellyn is a president and chief executive officer, director at Trailhead Biosystems.
Experience
This experience comes from David Llewellyn's profile and from SEC filings. For roles taken from filings, the years are when the filings name David Llewellyn in the role, so the role may have started earlier or lasted longer.
Trailhead Biosystems Inc. Current
President and CEO (2025 – Present)
Director
2025 – Present · Beachwood, OH
Human cell products for drug discovery and cell therapy research.
ST
STEMCELL Technologies
Chief Strategy Officer (CSO)
2006 – 2025
AI
AQUINOX PHARMACEUTICALS INC
Director, Business Operations
2007 – 2010
MI
MethylGene Inc.
Senior Research Scientist
2001 – 2004
Key Colleagues at Startups
The people David Llewellyn works with at each company, as listed on that company's latest Form D.
Trailhead Biosystems Inc. · Form D/A, Jul 30, 2026
HH
Houman Hemmati
Director
Wolfgang Hofmann
Board Member, Trailhead Biosystems
Craig Nemiroff
Managing Director, MAK Capital
Joshua Snow
Chief Commercial Officer
Jan Jensen
Board Member, Trailhead Biosystems
Divya Trivedi
Chief Operating Officer
Michael Kaufman
Chief Executive Officer, MAK Capital and director