# Antera Therapeutics funding: rounds and investors

> Antera Therapeutics has raised $2.3M across 2 rounds since 2015. Investors include MassChallenge and RA Capital Management. Every round with its source.

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

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

# Who invested in *Antera 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

Funding summary Updated 26 Oct 2026

**$2.3M** raised across 2 rounds since 2015, from 2 sources

**$265K** Debt **$2.0M** Seed

- **Latest round:** Seed, $2.0M Jun 2016
- **Step-up i:** 7.5×
- **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.

2016

**$265K** Debt

**$2.0M** Seed

- **First round:** Debt, $265K
- **Biggest round:** $2.0M
- **Between rounds:** 11 months

## The rounds

- **Jun 2016** Seed **$2.0M** *2 new* [MassChallenge](https://millionrounds.com/fund/masschallenge) [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) Source recorded SEC filing: $2.0M sold, first sale May 2016
- **Jun 2015** Debt **$265K** No investor was named in the report. From a historical funding record SEC filing: $265K sold, first sale Jun 2015

## 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.

**Debt** 2015 **Seed** 2016 [MassChallenge](https://millionrounds.com/fund/masschallenge) [RA Capital Management](https://millionrounds.com/fund/ra-capital-management)

## Everyone who backed them

[MassChallenge](https://millionrounds.com/fund/masschallenge) Accelerator **1** round

[RA Capital Management](https://millionrounds.com/fund/ra-capital-management) Private equity **1** round

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

## Quick answers about Antera Therapeutics

### Who invested in Antera Therapeutics?

Antera Therapeutics's investors include MassChallenge and RA Capital Management.

### How much has Antera Therapeutics raised?

Antera Therapeutics has raised $2.3M across 2 rounds since 2015.

### When did Antera Therapeutics last raise?

Antera Therapeutics's most recent round was a Seed of $2.0M in Jun 2016.

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

Its most recent round, $2.0M in Jun 2016, is also its largest on record.

### Who backed Antera Therapeutics first?

Antera Therapeutics's first round on record, in Jun 2016, was backed by MassChallenge and RA Capital Management.

### What stage is Antera Therapeutics at?

Antera Therapeutics's latest named round is a Seed, in Jun 2016.

### Where is Antera Therapeutics based?

Antera Therapeutics is based in the United States.

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

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