Capstan Therapeutics
AcquiredIn vivo engineering of cells through targeted lipid nanoparticles.
San Diego, United States · Founded 2021 · $340.0M raised
- Headquarters
- San Diego
- Employees
- 51–200
- Founded
- 2021
- Business Model
- B2B
- Website
- abbvie.com
- Total Funding
- $340.0M
- Last Round
- $175.0M Series BMar 2024
- Rounds
- 3
- Acquired by
- AbbVieJun 2025
About
Capstan Therapeutics is a San Diego-based biotechnology company founded in 2021 as a Penn spinout. The company developed in vivo CAR-T cell therapies using targeted lipid nanoparticles (CellSeeker™ LNPs) to engineer T cells inside the body for treating autoimmune diseases and cancer. Capstan was acquired by AbbVie in 2025 for $2.1 billion upfront.
Summary
Capstan Therapeutics is a Biotech company based in San Diego, United States, founded in 2021. It has raised $340.0M in total across 3 rounds, most recently a $175.0M Series B round in Mar 2024. Investors include AbbVie Ventures, Pfizer Ventures and Novartis Venture Fund.
Funding History
Sign up to view the funding chart
Create a free account with 25 free credits every month, no card needed, to unlock funding history, valuations, and tech stacks.
Jun 2025
Sign up to see all 4 rounds
Seed through Acquisition — per-round amounts, valuations, and who invested in each round.
Investors
Similar Companies
China's leading blood products manufacturer
Global contract research organization providing comprehensive drug development and laboratory ser...
Global fertility clinics platform
Biotech advancing cellular rejuvenation programming to restore cell health and reverse disease.
Biopharmaceutical services company
Specialty pharmaceutical 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/capstan-therapeutics"><img src="https://indexed.vc/api/badge/company/capstan-therapeutics" alt="Capstan Therapeutics on Indexed.vc" width="260" height="76" /></a>