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CompanyCompany profileReviewed 2026-10-23

SUTRO BIOPHARMA, INC.

Sutro Biopharma, Inc. is a publicly traded biotechnology company headquartered in South San Francisco, California focused on clinical-stage drug discovery, development and manufacturing. Using a proprietary cell-free protein synthesis platform, Sutro is working on oncology therapeutics using protein engineering and rational design. Founded in 2003 under the name Fundamental Applied Biology, the company name changed to Sutro Biopharma in 2009. William Newell, CEO as of 2024, joined Sutro in January 2009.

Sources and references ↗
COMPANY PROFILE / 10 SOURCE-LINKED FIELDS

Basic company information

Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.

Business sectors
biotechnology [1]
Company / filing name
SUTRO BIOPHARMA, INC. [2]
Headquarters location
South San Francisco [1]
Founded
2003 [1]
Legal form
privately held company [1]
Official website
www.sutrobio.com ↗ [1]
ISIN (reported securities)
US8693671021 [1]
CIK
1382101 [2]
Country in background record
United States [1]
Symbols / exchanges
STRO (Nasdaq) [2]

Company positioning and business

Sutro Biopharma, Inc. is a publicly traded biotechnology company headquartered in South San Francisco, California focused on clinical-stage drug discovery, development and manufacturing. Using a proprietary cell-free protein synthesis platform, Sutro is working on oncology therapeutics using protein engineering and rational design. Founded in 2003 under the name Fundamental Applied Biology, the company name changed to Sutro Biopharma in 2009. William Newell, CEO as of 2024, joined Sutro in January 2009. [3]

Sutro's cell-free protein synthesis and site-specific conjugation platform, XpressCF+, contributed to the discovery of STRO-001 and STRO-002, internally-developed antibody drug conjugates, or ADCs. STRO-001 is an ADC targeting CD74, a protein highly expressed in multiple myeloma and non-Hodgkin's lymphoma, and is currently in a Phase I clinical trial. STRO-002 is an ADC targeting folate receptor alpha, a cell-surface protein highly expressed in gynecological cancers. [3]

As of 2024 Sutro's drug discovery efforts have focused on antibody-drug conjugates, cytokine-based immuno-oncology therapies, and bispecific antibodies primarily directed at clinically validated targets for which the current standard of care is suboptimal. [3]

Background text: Wikipedia contributors, Sutro Biopharma. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.

Financial year, securities and disclosures

Listed securities: STRO (Nasdaq). Multiple symbols may represent different share classes or securities of the same registrant. [2]

History and key events

  1. Founding / inception date recorded in Wikidata. [1]

Financial results and regulatory disclosures

No individual financial documents have been indexed yet. Open the source to consult company disclosures. [2]

Related entities and concepts

Frequently asked questions

When was SUTRO BIOPHARMA, INC. founded?

Founded: 2003. The linked source provides the background record. [1]

Where is the headquarters of SUTRO BIOPHARMA, INC.?

Headquarters location: South San Francisco. The linked source provides the background record. [1]

Which business sectors are recorded for SUTRO BIOPHARMA, INC.?

Business sectors: biotechnology. The linked source provides the background record. [1]

Sources and review dates

  1. Wikidata — company background record (CC0) ↗
  2. Company identity and profile data ↗
  3. Wikipedia contributors — Sutro Biopharma (CC BY-SA 4.0) ↗

Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.

Content preparation: source-based compilation with AI assistance. See methods and attribution. Named sources identify the underlying records; no individual expert review is claimed.