Dren Bio
Dren Bio is a biotech company in San Carlos, United States, founded in 2019. It has raised $1.8B across 4 rounds, most recently a $1.7B Corporate Round in December 2025.
- Headquarters
- San Carlos, California
- Employees
- 11–50
- Founded
- 2019
- Business Model
- B2B
- Website
- drenbio.com
- Total Funding
- $1.8B
- Last Round
- $1.7B Corporate RoundDec 2025
- Rounds
- 4
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 4 funding rounds and 8 investors for this company. The full record is or through the API.
About
Dren Bio is a San Carlos, California-based clinical-stage biopharmaceutical company pioneering antibody therapeutics that deplete pathogenic cells and agents. Founded in May 2019 by CEO Nenad Tomasevic, the company develops bispecific antibodies that selectively engage effector cells to treat cancer and autoimmune diseases. In 2025, Sanofi agreed to acquire Dren Bio's lead CD20-directed bispecific antibody program DR-0201.
Summary
It lists 11–50 employees. It has raised $1.8B in total across 4 rounds, most recently a $1.7B Corporate Round in Dec 2025. Investors include 8VC, Sanofi Ventures and Pfizer Ventures.
Tech & App Stack
4 technologies & apps tracked
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Funding History
Dec 2025
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Funding: Seed through Corporate Round. Amounts, valuations, and investors where available.
Investors
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