Gossamer Bio
formerly GossamerIPOTransforming the lives of patients with pulmonary arterial hypertension.
Public · San Diego, United States · Founded 2017 · $912.0M raised
- Headquarters
- San Diego, California
- Employees
- 51–200
- Founded
- 2017
- Business Model
- B2B
- Website
- gossamerbio.com
- Total Funding
- $912.0M
- Last Round
- $250.0M Private EquityAug 2026
- Rounds
- 5
- Type
- Public
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Gossamer Bio, founded in 2015 and headquartered in San Diego, California, is a clinical-stage biopharmaceutical company listed on Nasdaq (GOSS). The company is focused on the development and commercialization of seralutinib, an inhaled kinase inhibitor for the treatment of pulmonary arterial hypertension (PAH). Gossamer raised $317 million in its 2019 IPO and has a global collaboration with the Chiesi Group for seralutinib development, providing milestone payments and cost reimbursements.
Summary
Gossamer Bio is a Biotech company based in San Diego, United States, founded in 2017. It has raised $912.0M in total across 5 rounds, most recently a $250.0M Private Equity round in Aug 2026. Investors include Hillhouse Capital, Hillhouse Capital Group and ARCH Venture Partners.
Tech & App Stack
5 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding & Exit History
Aug 2026
Sign up to see all 6 events
Funding: Series A through Private Equity. Amounts, valuations, and investors where available.
Investors
Similar Companies
Global contract research organization providing comprehensive drug development and laboratory ser...
Specialty pharmaceutical company
Altos Labs combines academic science and industry development to create medicines that restore ce...
Integrated biopharmaceutical solutions company
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/gossamer-bio"><img src="https://indexed.vc/api/badge/company/gossamer-bio" alt="Gossamer Bio on Indexed.vc" width="260" height="76" /></a>