Westlake BioPartners Fund III, L.P.
Open, writing first checks
Open: no first sale reported; age from Form D filed Jun 2023 (approximate)
- Vintage
- Unknown
- Fund size
- $450M to $456.01M (Form D and SEC adviser filing)
- Stages
- Not stated
- Sectors
- Biotech
- Regions
- CA
01 · Thesis
Westlake BioPartners is a people-first life science venture capital firm that backs entrepreneurs from ideation and preclinical research through clinical and commercial impact, aiming to bring life-changing medicines to patients with unmet needs.Inferred from the firm's website
02 · Initial check
$4.5M to $7.6M (estimated from fund size)
Estimated from Form D and SEC adviser filing
03 · Who to approach
Named on this fund's Form D
- Beth Seidenberg, Managing Director of the General Partner
- David Allison, Managing Director of the General Partner
- Mira Chaurushiya, Managing Director of the General Partner
04 · Deals
No deals attributed to this fund yet.
05 · Evidence
Firm-wideWestlake BioPartners is a life science venture capital firm that puts people first and supports entrepreneurs from ideation and preclinical research through clinical and commercial impact.
Westlake BioPartners is a life science venture capital firm where every aspect of our approach is founded on the understanding that people are paramount to success.
https://westlakebio.com/about/
06 · Sources
Last verified: Oct 28, 2026