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TRexBio

TRexBio IPO

$272.99M
Series B Valuation, Jan 2026
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TRexBio IPO date and status

2018
Founded
Sep 2026
S-1 Filed
Oct 2026
IPO Completed

Company details

TRex Bio is a biotechnology company focused on creating purpose-built biologic therapies designed to restore immune balance in autoimmune and inflammatory diseases by targeting regulatory T cell (Treg) biology in human tissues. TRex Bio’s proprietary Deep Biology Platform decodes immune regulatory mechanisms in diseased tissues to uncover novel therapeutic targets and develop precision treatments, with lead candidates such as TRB-061 in clinical development for conditions like atopic dermatitis. The company aims to transform how immune-mediated diseases are treated by advancing durable, tissue-specific therapies that address underlying dysregulation. This company was founded in 2018 and is headquartered in South San Francisco, CA.
Founded
2018
Headquarters
San Francisco, CA, United States
Forge Price 1
Price not available
Market Activity 2
Limited
Last Matched Price
Post-Money Valuation 3
$272.99M
Total Funding
$218.62M
Last Funding Round
Series B

Learn more about TRexBio

To invest in TRexBio pre-IPO

Can you invest in TRexBio pre-IPO?

You may invest in TRexBio as it is a public company listed on the NASDAQ with ticker TRXB. But if you are an accredited investor interested in buying pre-IPO shares of a private company, you can learn more about how to invest in the private market or register today to get started.

Can you sell shares of TRexBio before it goes public?

You can no longer sell shares of TRexBio on Forge as this company is no longer private. However, if you own shares of a private company, Forge may be able to help you sell them in a way that works for you and the company. Learn more or register with us today to get started.

What is the pre-IPO value of my TRexBio shares?

Forge can no longer determine the value of TRexBio shares as this company is no longer private. However, if you own shares of a private company, Forge may help you value and sell them in a way that works for you and the company. Learn more or register with us today to get started.

Is TRexBio a publicly traded company?

TRexBio became a public company following its IPO on 10/09/2026 and is now traded on the NASDAQ under the ticker TRXB.

To learn more about TRexBio potential IPO

Will TRexBio go IPO?

TRexBio became a public company following its IPO on 10/09/2026 and is now traded on the NASDAQ under the ticker TRXB.

What is TRexBio’s IPO price?

The IPO price of TRexBio is not currently available.

When was TRexBio founded?

TRexBio was founded in 2018.

What is TRexBio funding to date?

TRexBio has raised $218.62M to date.

TRexBio pre-IPO valuation and funding rounds

Funding history chart
Funding round and deals details
Funding Date Round Amount Raised Price per Share Post-Money Valuation 3 Key Investors
01/27/2026 Series B $134.06M $11.94 $272.99M Affinity Asset Advisors, Agent Capital, Alexandria Venture Investments, Avego Management, Balyasny Asset Management, Delos Capital Partners, Eli Lilly & Company, Janus Henderson Investors, Johnson & Johnson Innovation, Pfizer Ventures Investments, Polaris Partners, Sv Health Investors
Price per Share
$ xx.xx
Shares Outstanding
11,226,399
Liquidation Pref Order
1
Liquidation Pref As Multiplier
1.0x
Conversion Ratio
1.0x
Dividend Rate
0.0%
Cumulative
Non-cumulative
Participating
Non-participating
Participation Cap
--
Key Investors
Affinity Asset Advisors, Agent Capital, Alexandria Venture Investments, Avego Management, Balyasny Asset Management, Delos Capital Partners, Eli Lilly & Company, Janus Henderson Investors, Johnson & Johnson Innovation, Pfizer Ventures Investments, Polaris Partners, Sv Health Investors
03/08/2022 Series A-2 $29.8M $14.96 $162.44M Alexandria Venture Investments, Eli Lilly & Company, Johnson & Johnson Innovation, Laurion Capital Management Lp, Pfizer Ventures Investments, Sv Health Investors
Price per Share
$ xx.xx
Shares Outstanding
1,992,290
Liquidation Pref Order
2
Liquidation Pref As Multiplier
1.0x
Conversion Ratio
1.0x
Dividend Rate
8.0%
Cumulative
Cumulative
Participating
Non-participating
Participation Cap
--
Key Investors
Alexandria Venture Investments, Eli Lilly & Company, Johnson & Johnson Innovation, Laurion Capital Management Lp, Pfizer Ventures Investments, Sv Health Investors
06/22/2021 Series A-3 $48.31M $14.96 $150.36M Alexandria Venture Investments, Eli Lilly & Company, Johnson & Johnson Innovation, Pfizer Ventures Investments, Sv Health Investors
Price per Share
$ xx.xx
Shares Outstanding
3,229,832
Liquidation Pref Order
2
Liquidation Pref As Multiplier
1.0x
Conversion Ratio
1.0x
Dividend Rate
8.0%
Cumulative
Cumulative
Participating
Non-participating
Participation Cap
--
Key Investors
Alexandria Venture Investments, Eli Lilly & Company, Johnson & Johnson Innovation, Pfizer Ventures Investments, Sv Health Investors
06/22/2021 Series A-1 $6.45M $4.99 $150.36M Alexandria Venture Investments, Eli Lilly & Company, Johnson & Johnson Innovation, Pfizer Ventures Investments, Sv Health Investors
Price per Share
$ xx.xx
Shares Outstanding
1,293,695
Liquidation Pref Order
2
Liquidation Pref As Multiplier
1.0x
Conversion Ratio
1.0x
Dividend Rate
8.0%
Cumulative
Cumulative
Participating
Non-participating
Participation Cap
--
Key Investors
Alexandria Venture Investments, Eli Lilly & Company, Johnson & Johnson Innovation, Pfizer Ventures Investments, Sv Health Investors

Private companies exploring an IPO

See which private companies are preparing for the public market. Register to get full access to the latest secondary market pricing data.

Sector: Healthcare
Subsector: Other Healthcare
Trade Metrics Last Funding Round
Company Forge Price Last Matched Round Post-Money Valuation 3 Price Per Share Amount Raised
OURAOURANot available$ xx.xxSeries E$11.36B$53.57$972.43M
City TherapeuticsCity TherapeuticsNot available$ xx.xxSeries B$571.5M$14.63$99.5M
Iambic TherapeuticsIambic TherapeuticsNot available$ xx.xxSeries B-4$671.11M$3.26$32.77M
Aspen NeuroscienceAspen NeuroscienceNot available$ xx.xxSeries C$350.82M$1.52$115.62M
Lycia TherapeuticsLycia TherapeuticsNot available$ xx.xxSeries D$389.03M$2.04$75M
Bambusa TherapeuticsBambusa TherapeuticsNot available$ xx.xxSeries A-2$532.63M$18.73$33.07M
Affinia TherapeuticsAffinia TherapeuticsNot available$ xx.xxSeries C$156.61M$1.62$40M
OriginOriginNot available$ xx.xxNot available------

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Updated on: Oct 15, 2026

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