Westlake BioPartners

VC firm · Westlake Village, CA

SEC-registered adviser

Venture firm based in Westlake Village, CA. Most recent fund on file: Westlake BioPartners Fund III, L.P. ($450M offering), filed Jun 2023. Partners sit on the boards of 5 startups that raised recently.

“Westlake BioPartners is a people-first life science venture capital firm that crafts companies around world-class entrepreneurs. Immersed in the Los Angeles biotech community, we incubate the most promising companies to turn breakthroughs into treatments for patients in need.” (from the firm’s website)
Stages
Seed to Growth
Typical check (est.)
$4.5M–$13.5M
Latest fund
$450M · Jun 2023
Last verified activity
Oct 2025

Focus

Biotech & Pharma

Recent portfolio activity

  • Star Therapeutics

    Board seat · CA

    Oct 2025
  • Arpeggio Biosciences

    Board seat · CO

    Mar 2025
  • Latigo Biotherapeutics

    Board seat · CA

    Feb 2025
  • Arsenal Biosciences

    Board seat · CA

    Sep 2024

Funds and vehicles on SEC file

  • Westlake BioPartners Fund III, L.P.

    Fund · $450M offering

    Jun 2023

Sources

Profile last verified Oct 12, 2026. Is this you? Correct or remove this profile.