Sutro Biopharma
IPOSutro Biopharma, Inc. is a public biotechnology company focused on clinical stage drug discovery, development and manufacturing company.
Public · South San Francisco, United States · Founded 2003 · $168.9M raised
- Headquarters
- South San Francisco, California
- Employees
- 201–500
- Founded
- 2003
- Business Model
- B2B
- Website
- sutrobio.com
- Total Funding
- $168.9M
- Last Round
- $85.4M Series EJul 2018
- Rounds
- 5
- Type
- Public
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Sutro Biopharma is a clinical-stage oncology company pioneering site-specific and novel-format antibody-drug conjugates (ADCs) built on its proprietary XpressCF cell-free protein synthesis and XpressCF+ conjugation platforms. Headquartered in South San Francisco, Sutro develops ADCs, bispecific antibodies, cytokine-based immuno-oncology therapies, and vaccines for cancers with unmet need, including STRO-001 and STRO-002 (luvelta), and collaborates with partners such as Merck and Astellas Pharma on additional programs.
Summary
Sutro Biopharma is a Biotech company based in South San Francisco, United States, founded in 2003. It has raised $168.9M in total across 5 rounds, most recently a $85.4M Series E round in Jul 2018. Investors include SV Health Investors, Samsara BioCapital and Surveyor Capital.
Tech & App Stack
4 technologies & apps tracked
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Funding & Exit History
Feb 2026
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Funding: Grant through Series E. Amounts, valuations, and investors where available.
Investors
SV Health Investors
3 rounds
Samsara BioCapital
1 round
Surveyor Capital
1 round
Alta Partners
3 rounds
Skyline Global Partners
3 rounds
Eli Lilly
3 rounds
Amgen
2 rounds
Celgene Corporation
2 rounds
Nexthera Capital
1 round
Vida Ventures
1 round
Tekla Capital Management
1 round
Eventide Asset Management
1 round
SV Life Sciences
1 round
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