# Alkeus Pharmaceuticals funding: rounds and investors

> Alkeus Pharmaceuticals has raised $150M across 2 rounds since 2010. Investors include MassChallenge, Wellington Management and TCG. Every round with its source.

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

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

# Who invested in *Alkeus Pharmaceuticals*

2 rounds we have observed, with the 5 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

Funding summary Updated 26 Oct 2026

**$150M** raised across 2 rounds since 2010, from 2 sources

**$100K** Seed **$150M** Series B

- **Latest round:** Series B, $150M Jun 2023
- **Step-up i:** 1500×
- **Investors:** 5

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.

2010 2012 2014 2016 2018 2020 2022

**$100K** Seed

**$150M** Series B

- **First round:** Seed, $100K
- **Biggest round:** $150M
- **Between rounds:** 12.6 years

## The rounds

- **Jun 2023** Series B **$150M** *4 new* *1 returning* [MassChallenge](https://millionrounds.com/fund/masschallenge) [Wellington Management](https://millionrounds.com/fund/wellington-management) [TCG](https://millionrounds.com/fund/tcg) [TCG Crossover](https://millionrounds.com/fund/tcg-crossover) [Bain Capital Life Sciences](https://millionrounds.com/fund/bain-capital-life-sciences) Source recorded
- **Oct 2010** Seed **$100K** *1 new* [MassChallenge](https://millionrounds.com/fund/masschallenge) From a historical funding record

## 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.

**Seed** 2010 **Series B** 2023 [MassChallenge](https://millionrounds.com/fund/masschallenge) [Wellington Management](https://millionrounds.com/fund/wellington-management) [TCG](https://millionrounds.com/fund/tcg) [TCG Crossover](https://millionrounds.com/fund/tcg-crossover) [Bain Capital Life Sciences](https://millionrounds.com/fund/bain-capital-life-sciences)

## Everyone who backed them

[MassChallenge](https://millionrounds.com/fund/masschallenge) Accelerator **2** rounds

[Wellington Management](https://millionrounds.com/fund/wellington-management) VC firm **1** round

[TCG](https://millionrounds.com/fund/tcg) Private equity **1** round

[TCG Crossover](https://millionrounds.com/fund/tcg-crossover) VC firm **1** round

[Bain Capital Life Sciences](https://millionrounds.com/fund/bain-capital-life-sciences) Private equity **1** round

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

## Quick answers about Alkeus Pharmaceuticals

### Who invested in Alkeus Pharmaceuticals?

Alkeus Pharmaceuticals's investors include MassChallenge, Wellington Management, TCG, TCG Crossover and Bain Capital Life Sciences.

### How much has Alkeus Pharmaceuticals raised?

Alkeus Pharmaceuticals has raised $150M across 2 rounds since 2010.

### When did Alkeus Pharmaceuticals last raise?

Alkeus Pharmaceuticals's most recent round was a Series B of $150M in Jun 2023.

### What was Alkeus Pharmaceuticals's biggest round?

Its most recent round, $150M in Jun 2023, is also its largest on record.

### Who backed Alkeus Pharmaceuticals first?

Alkeus Pharmaceuticals's first round on record, in Oct 2010, was backed by MassChallenge.

### What stage is Alkeus Pharmaceuticals at?

Alkeus Pharmaceuticals's latest named round is a Series B, in Jun 2023.

### Where is Alkeus Pharmaceuticals based?

Alkeus Pharmaceuticals is based in the United States.

## Companies like Alkeus Pharmaceuticals

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)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)

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