Insights

Strategic realignment Turnstone Biologics is undergoing strategic shifts including discontinuation of the TIDAL-01 program and exploration of strategic alternatives such as sale or merger. This signals potential readiness to engage with potential acquirers, partners, or licensees for their Selected TIL platform and related assets.

TIL platform focus The company emphasizes a differentiated Selected TIL therapy approach for solid tumors with ongoing clinical exploration in colorectal cancer, head and neck cancer, and uveal melanoma. This presents opportunities to discuss collaboration, licensing, or co-development with firms seeking access to next-generation TIL technologies.

Recent financing signals Public listing and subsequent liquidity activity, including a notable merger event involving XOMA, indicate heightened M&A and partnership interest in Turnstone. This environment may lower barriers for strategic discussions with potential buyers, investors, or development partners.

Clinical-stage opportunities With a Phase 1 program in multiple solid tumor indications, there is potential for out-licensing, milestone-based partnerships, or regional development deals to broaden access to their Selected TIL platform while managing internal capital requirements.

Leadership and governance Recent governance updates and key appointments, such as board additions, suggest an openness to strategic advisory and enterprise-level partnerships. This can be leveraged to propose joint ventures, co-development agreements, or advisory-led collaboration structures.

Similar companies to Turnstone Biologics

Turnstone Biologics Tech Stack

Turnstone Biologics uses 8 technology products and services including Open Graph, SAP, JSON-LD, and more. Explore Turnstone Biologics's tech stack below.

  • Open Graph
    Content Management System
  • SAP
    Customer Relationship Management
  • JSON-LD
    Javascript Frameworks
  • Microsoft
    Miscellaneous
  • Python
    Programming Languages
  • Smartsheet
    Project Management
  • Yoast SEO
    Search Engines
  • X-XSS-Protection
    Security

Media & News

Turnstone Biologics's Email Address Formats

Turnstone Biologics uses at least 1 format(s):
Turnstone Biologics Email FormatsExamplePercentage
First.Last@turnstonebio.comJohn.Doe@turnstonebio.com
85%
First@turnstonebio.comJohn@turnstonebio.com
13%
First.Middle@turnstonebio.comJohn.Michael@turnstonebio.com
1%
First.L@turnstonebio.comJohn.D@turnstonebio.com
1%

Frequently Asked Questions

Where is Turnstone Biologics's headquarters located?

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Turnstone Biologics's main headquarters is located at 9310 Athena Circle Suite 300 San Diego, California United States. The company has employees across 1 continents, including North America.

What is Turnstone Biologics's stock symbol?

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Turnstone Biologics is a publicly traded company; the company's stock symbol is TSBX.

What is Turnstone Biologics's official website and social media links?

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Turnstone Biologics's official website is turnstonebio.com and has social profiles on LinkedInCrunchbase.

What is Turnstone Biologics's SIC code NAICS code?

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Turnstone Biologics's SIC code is 8733 - Noncommercial Research Organizations NAICS code is 541714 - Research and Development in Biotechnology (except Nanobiotechnology).

How many employees does Turnstone Biologics have currently?

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As of February 2026, Turnstone Biologics has approximately 22 employees across 1 continents, including North America. Key team members include Chief Financial Officer: J. H.Chief Financial Officer: V. R.Financial Coordinator For Tech Ops & Ea To Cto: J. A.. Explore Turnstone Biologics's employee directory with LeadIQ.

What industry does Turnstone Biologics belong to?

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Turnstone Biologics operates in the Biotechnology Research industry.

What technology does Turnstone Biologics use?

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Turnstone Biologics's tech stack includes Open GraphSAPJSON-LDMicrosoftPythonSmartsheetYoast SEOX-XSS-Protection.

What is Turnstone Biologics's email format?

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Turnstone Biologics's email format typically follows the pattern of First.Last@turnstonebio.com. Find more Turnstone Biologics email formats with LeadIQ.

When was Turnstone Biologics founded?

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Turnstone Biologics was founded in 2015.
Turnstone Biologics logo

Turnstone Biologics

Biotechnology ResearchCalifornia, United States11-50 Employees

Turnstone Biologics is a clinical-stage biotechnology company based in San Diego, California, focused on developing therapies for solid tumors. Its approach relies on Selected Tumor-Infiltrating Lymphocytes, which are identified, selected, and expanded to form potent tumor-reactive T cells, with the aim of addressing limitations seen with earlier bulk TIL therapies. The company’s clinical program, TIDAL-01, has been evaluated in early-phase studies across colorectal cancer, head and neck cancer, and uveal melanoma. Turnstone operates within the biotechnology research sector and pursues a next-generation TIL platform as its primary clinical strategy. In August 2025, XOMA Corporation merged Turnstone Biologics into a subsidiary of XRA 3 Corp., marking a significant corporate development for the company.

Section iconCompany Overview

Headquarters
9310 Athena Circle Suite 300 San Diego, California United States
SIC Code
8733 - Noncommercial Research Organizations
Stock Symbol
TSBX
NAICS Code
541714 - Research and Development in Biotechnology (except Nanobiotechnology)
Founded
2015
Employees
11-50

Section iconFunding & Financials

  • $10M$25M

    Turnstone Biologics's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    Turnstone Biologics's revenue is estimated to be in the range of $10M$25M

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