# Virion Therapeutics funding: rounds and investors

> Virion Therapeutics has raised $4.1M across 2 rounds since 2018. Investors include Keiretsu Forum and Keiretsu Capital. Every round with its source.

Source: https://millionrounds.com/company/virion-therapeutics (Millionrounds; every figure on the page links to its filing or article)

United States · [Venture startup](https://millionrounds.com/companies)

# Who invested in *Virion Therapeutics*

2 rounds we have observed, with the 2 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech Healthcare

Funding summary Updated 26 Oct 2026

**$4.1M** raised across 2 rounds since 2018, from 2 sources

**$4.0M** Angel **$95K** Venture

- **Latest round:** Venture, $95K Oct 2024
- **Biggest round:** $4.0M Angel · Sept 2018
- **Investors:** 2

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2019 2020 2021 2022 2023 2024

**$4.0M** Angel

**$95K** Venture

- **First round:** Angel, $4.0M
- **Biggest round:** $4.0M
- **Between rounds:** 6 years

## The rounds

- **Oct 2024** Venture **$95K** *2 new* [Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) Source recorded
- **Sept 2018** Angel **$4.0M** No investor was named in the report. Reported by Technical SEC filing: $4.9M sold, first sale Jun 2018

## Founders and team

From Virion Therapeutics's own website and the SEC filings it signed: 3 on the team.

- **Paula MacDonald** Chief Technology Officer
- **Andrew Luber** Executive Officer, Director i
- **Bernard Rudnick** Executive Officer, Director i

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Angel** 2018 **Venture** 2024 [Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital)

## Everyone who backed them

[Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) Angel network **1** round

[Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=virion-therapeutics).

## Quick answers about Virion Therapeutics

### Who invested in Virion Therapeutics?

Virion Therapeutics's investors include Keiretsu Forum and Keiretsu Capital.

### How much has Virion Therapeutics raised?

Virion Therapeutics has raised $4.1M across 2 rounds since 2018.

### When did Virion Therapeutics last raise?

Virion Therapeutics's most recent round was a Venture of $95K in Oct 2024.

### What was Virion Therapeutics's biggest round?

Virion Therapeutics's largest round on record is $4.0M (Angel), in Sept 2018.

### Who backed Virion Therapeutics first?

Virion Therapeutics's first round on record, in Oct 2024, was backed by Keiretsu Forum and Keiretsu Capital.

### What stage is Virion Therapeutics at?

Virion Therapeutics's latest named round is a Venture, in Oct 2024.

### Where is Virion Therapeutics based?

Virion Therapeutics is based in the United States.

## Companies like Virion Therapeutics

In the same sector, and raised in the last eighteen months.

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)

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