# Argenx: portfolio, investments and team

> Argenx is a growth equity based in United States. 1 investment on record, 1 in the last 12 months, latest Mar 2026. Portfolio, stages, co-investors and team.

Source: https://millionrounds.com/fund/argenx (Millionrounds; every figure on the page links to its filing or article)

United States · [Investor](https://millionrounds.com/investors)

# Argenx

Last cheque observed Mar 2026; 1 cheques on record.

Deploying now Growth equity

Series B Biotechnology Clinical Trials Therapeutics

Deploying now

**100%** of best year **1** **cheques in 12 months**, 1 on record

Since the last cheque **239** days **00** hrs **00** min **00** sec

Median round **$45M** Rounds led **0 of 1**

Pitch Argenx

## Argenx highlights

- 01 1 cheques in the last 12 months
- 02 Mostly Series B: 100% of its rounds

## What they do

- **Type:** Growth equity (from a list, unverified)
- **Cheque size:** Not stated
- **Sectors:** Biotechnology Clinical Trials Therapeutics
- **Based in:** Boston, United States
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **1 appearances**

- **2026** 1 round
- **Mar** **[Unnatural Products](https://millionrounds.com/company/unnatural-products)** Series B · US · Firms' own news pages **$45M** With 8 others

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## What they claim to have backed

From their own portfolio page (on their website)

**0** of 2 we have independently watched raise

VYVGART VYVGART

Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.

## The cheque

Series B

Median round joined **$45M** the round, not its cheque

Led 0 of 1 rounds **0%**

- **Sole investor:** Never alone
- **Last cheque:** Mar 2026

Rounds by stage said on their site

- Series B *1*

Cheques by month Led Joined

Nov 2023 Oct 2026

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## Quick answers about Argenx

### What does Argenx invest in?

Argenx invests most often at Series B (100% of the rounds on record), in sectors such as Biotechnology, Clinical Trials and Therapeutics.

### How active is Argenx?

1 investments on record, 1 of them in the last 12 months. The most recent was in Mar 2026.

### What has Argenx invested in recently?

Its most recent investments on record: Unnatural Products (Series B, Mar 2026).

### How big are Argenx's cheques?

The median round it joins is $45M.

### Is Argenx investing now?

Yes: it is actively investing, with 1 investments in the last 12 months.

### What kind of investor is Argenx?

Argenx is a growth equity firm based in Boston, United States.

### When was Argenx founded?

Argenx was founded in 2008.

### Where does this information on Argenx come from?

From 2 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night.

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Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=argenx) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=argenx)