Tr1x Funding, Investors & Competitors

Tr1x has raised $125M across 2 funding rounds, most recently a $50M undisclosed-stage round in October 2025.

See full Tr1x profile

Last Tr1x funding round

$50M

Undisclosed stage · Oct 2025

Cumulative funding Tr1x raised

$125M

across 2 funding rounds

Key investors in Tr1x

  • Alexandria Venture Investments
  • The Column Group
  • Neva SGR

Tr1x Overview

About Tr1x

Tr1X is a biotechnology firm developing allogeneic engineered regulatory T cell and CAR-Treg therapies for autoimmune and inflammatory diseases. Its lead candidate TRX103 consists of CD4+ cells from healthy donors mimicking Type 1 regulatory T cells and targets treatment-refractory Crohn’s Disease following U.S. Food and Drug Administration clearance of its Investigational New Drug application. Tr1X also advances TRX103 in a Phase 1/2a trial for Graft-Versus-Host Disease supported by a grant from the California Institute for Regenerative Medicine.


Founded

2018

HQ

United StatesSan Diego, CA

Website

tr1x.bio

Status

Privately held

Customer focus

B2B

Revenue model

Licensing

Tr1x Funding History

Tr1x has raised a total of $125M across 2 funding rounds.

Tr1x's first fundraising round was a $75M Series A in January 2024. The most recent completed round was a $50M undisclosed-stage round in October 2025.

Tr1x funding rounds

Tr1x funding rounds
DateStageInvestorsRaisedDeal Summary
Oct 2025Undisclosed stageThe Column Group; Alexandria Venture Investments; Neva SGR$50MTr1X is a cell therapy startup developing allogeneic engineered Tr1/Treg and CAR-Treg cell therapies to treat major autoimmune diseases, emerging from stealth mode to advance these programs into clinical trials. The company raised funding in October 2025 in a venture financing round led by The Column Group with participation from NEVA SGR (also referred to as Neva SGR) and Alexandria Ventures (Alexandria Venture Investments), with reported amounts of $50M in this round contributing to a total of $125M across two rounds, or alternatively described as a $75M Series A in some coverage. The company is positioned in the competitive cell therapy market targeting autoimmune diseases through regulatory T-cell engineering, distinguishing from T-cell therapies for oncology seen in peers like Adaptimmune or Arcellx. Comparative funding trends highlight strong investor interest in cell therapy startups, with Tr1X listed among active companies with robust fundraising like Affini-T Therapeutics and Triumvira Immunologics.
Jan 2024Series AThe Column Group (lead); Alexandria Venture Investments; Neva SGR$75MTr1X is a San Diego-based biotechnology company founded in 2021, focused on developing first-of-their-kind allogeneic engineered Tr1 regulatory T (Treg) and CAR-Treg cell therapies to treat and potentially cure autoimmune and inflammatory diseases such as graft-versus-host disease (GvHD), inflammatory bowel disease, Type 1 diabetes, and multiple B-cell mediated autoimmune diseases. The company's lead program, TRX103, is an investigational Tr1 cell therapy planned for Phase 1 evaluation in 2024 to prevent GvHD in patients undergoing mismatched hematopoietic stem cell transplants. Tr1X's proprietary technology engineers CD4+ T cells from healthy universal donors to recapitulate the function of naturally occurring Tr1 cells, discovered by scientific founder Maria Grazia Roncarolo, M.D., who serves as President and Head of R&D. On January 17, 2024, Tr1X emerged from stealth mode announcing a $75 million Series A financing round led by The Column Group, with participation from NEVA SGR (also referred to as Neva SGR) and Alexandria Ventures (also Alexandria Venture Investments). The funds will enable expedited advancement of its pipeline into Phase 1 clinical trials across multiple indications in 2024 and support operations through most of 2025. William Lis was appointed CEO and Director, bringing over 25 years of biotech experience, including prior roles at Portola Therapeutics and Jasper Therapeutics; additional leadership includes co-founder and COO David de Vries, and new independent directors. Tr1X operates in a competitive landscape of Treg cell therapy startups, including Sonoma Biotherapeutics and Quell Therapeutics, targeting high unmet needs in autoimmune diseases. Headquartered in Torrey Pines, La Jolla, the company has approximately 30 employees and plans rapid execution with its world-class team to revolutionize the field through innovative science based on Tr1 cell research.

Who has invested in Tr1x?

3 investors have backed Tr1x across its funding rounds, including Alexandria Venture Investments, The Column Group and Neva SGR.

Lead investors include The Column Group.


Tr1x Investors

Investors in Tr1x by funding rounds participated
InvestorHQRoundsRoleFirst check
The Column GroupUnited StatesSan Francisco, CA2LeadJan 2024

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Tr1x Competitors

Tr1x competitors include listed companies like Johnson & Johnson and Roche, and private ones like Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals.

Public and private companies comparable to Tr1x
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Johnson & JohnsonUnited StatesUnited StatesPublicly listed$94B$40B$651B6.8x
RocheSwitzerlandSwitzerlandPublicly listed$77B$26B$351B4.9x
Biosplice TherapeuticsUnited StatesSan Diego, CAPrivate--$12B-
Biomat USAUnited StatesLos Angeles, CAPrivate--$4.2B-
ArsenalBioUnited StatesUnited StatesPrivate--$1.9B-
BioRay PharmaceuticalsChinaShanghaiPrivate$131M-$1.9B14.5x

Tr1x Public Comps

Tr1x is still privately-owned, but its public comps include Samsung, Eli Lilly, Johnson & Johnson, AbbVie, Merck, Roche, Novartis, AstraZeneca, Thermo Fisher Scientific and Siemens.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Samsung$243B$67B4.4x2.4x15.8x4.4x
Eli Lilly$65B$28B16.5x13.1x38.7x27.0x
Johnson & Johnson$94B$40B7.2x6.8x17.0x18.3x
AbbVie$61B$17B8.7x8.1x30.6x17.6x
Merck$65B$28B6.3x6.2x14.7x21.0x
Roche$77B$26B5.0x4.9x14.6x12.4x
Novartis$57B$22B5.5x5.5x14.2x13.3x
AstraZeneca$59B$19B4.8x4.5x14.6x12.7x

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Common questions about Tr1x

When was Tr1x founded?Tr1x was founded in 2018.
Where is Tr1x headquartered?Tr1x is headquartered in San Diego, CA, United States.
Is Tr1x publicly listed?No, Tr1x is a private, VC-backed company.
How much funding has Tr1x raised?Tr1x has raised $125M across 2 funding rounds.
What was Tr1x's last funding round?Tr1x's last funding round was a $50M undisclosed-stage round in October 2025.
Who are Tr1x's investors?Tr1x's investors include The Column Group, Alexandria Venture Investments and Neva SGR.
Which companies are comparable to Tr1x?Companies comparable to Tr1x include Johnson & Johnson, Roche, Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals.

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