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Primmune Therapeutics

Primmune Therapeutics

Private
San Diego, CaliforniaHealthcare & Life Scienceshttps://primmunerx.com

Last Round

Series B

Jan 26, 2026

Total Funding Raised

$93.1M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

Primmune Therapeutics operates in Healthcare & Life Sciences and is based in San Diego, California. Its latest recorded funding round was a Series B round in January 2026.

Primmune Therapeutics is a biotechnology company that develops orally administered toll-like receptor 7 (TLR7) agonists to enhance innate immunity for the treatment of cancer and viral diseases.

Sector

Healthcare & Life Sciences

Verticals

Biotechnology, Drug Discovery, Clinical Trials

Business Model

B2B

Customer Profile

Government Contracts

AI Layer

Non-AI

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Pricing history

Caplight clients see full MarketPrice™ history and secondary transactions.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

Caplight clients track how buyer interest and sentiment change over time.

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Primmune Therapeutics Comparables

Compare Primmune Therapeutics with similar companies based on industry and business-model similarity.

Primmune Therapeutics comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
MonTa Biosciences
80%
Inimmune
80%
Apros Therapeutics
78%
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Primmune Therapeutics Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BJan 26, 2026
GrantMar 20, 2024
Series AJan 12, 2021
Series AOct 27, 2020
SeedMar 2, 2020
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Key People

Founding team and executive leadership

Paulo Rangel

Chief Business Officer And Co-founder

Founding Team

Marc Veale

Chief Financial Officer

Executive Team

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Primmune Therapeutics Investors

Notable investors and investment history

Primmune Therapeutics investors
InvestorRounds
CAM CapitalSeries A, Seed
BioRock VenturesSeries A, Seed
Bioqube VenturesSeries B, Series A
Oberland Capital ManagementSeries B, Series A
BioBritSeries A, Seed
Polaris PartnersSeries A
Samsara BioCapitalSeries B, Series A
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Market signals

Structured signals derived from secondary market and firmographic data.

  • Aug 22, 2026

    Monthly visitors increased 157% MoM.

  • Feb 5, 2026

    Chris Krueger appointed as Executive Chairman of the Board.

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Recent news

Latest coverage and updates

  • attends_eventNov 3, 2026

    Primmune presents two PRTX007 abstracts at the SITC 41st Annual Meeting in Arizona in Nov '26, covering Phase 1 pharmacology and the Phase 2 INFLECTION-003 study design.

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Primmune Therapeutics Filings

Explore SEC and related filing metadata, where available.

Primmune Therapeutics filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about Primmune Therapeutics's valuation, stock price, and market status.

Is Primmune Therapeutics a public or private company?

Primmune Therapeutics is a private company.

What is the current stock price of Primmune Therapeutics?

Primmune Therapeutics is a private company, so its shares have no public market price. Caplight tracks Primmune Therapeutics's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Primmune Therapeutics worth (valuation)?

Valuation information for Primmune Therapeutics is not publicly available.

Can I buy Primmune Therapeutics stock?

Primmune Therapeutics shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Primmune Therapeutics's last funding round?

Primmune Therapeutics's most recent funding round was Series B on January 26, 2026.

Who are the main investors in Primmune Therapeutics?

Key investors in Primmune Therapeutics include CAM Capital, BioBrit, Polaris Partners.

Will Primmune Therapeutics IPO soon?

No public IPO plans have been announced for Primmune Therapeutics.

How can I track Primmune Therapeutics secondary market activity?

Caplight tracks bids, offers, and trades in Primmune Therapeutics's shares on secondary markets.

Firmographic Details

HeadquartersSan Diego, California
Employee Range7
Year Founded2017
Last FundingJan 26, 2026

Institutional Data Access

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