# Alltrna funding: rounds and investors

> Alltrna has raised $109M across 1 round since 2023. Investors include Flagship Pioneering. Every round with its source.

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

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

# Who invested in *Alltrna*

One round we have observed, with the one investor named in it. 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

**$109M** raised across 1 round since 2023, from 1 source

- **Latest round:** Series B, $109M Aug 2023
- **Investors:** 1

See who backed them

## The rounds

- **Aug 2023** Series B **$109M** [Flagship Pioneering](https://millionrounds.com/fund/flagship-pioneering) Source recorded

## Founders and team

From Alltrna's own website: 2 on the team.

- **Joanne Protano** President & Chief Financial Officer
- **Lynne Parshall** Director

## Everyone who backed them

[Flagship Pioneering](https://millionrounds.com/fund/flagship-pioneering) VC firm **1** round

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

## Quick answers about Alltrna

### Who invested in Alltrna?

Alltrna's investors include Flagship Pioneering.

### How much has Alltrna raised?

Alltrna has raised $109M across 1 round since 2023.

### When did Alltrna last raise?

Alltrna's most recent round was a Series B of $109M in Aug 2023.

### What was Alltrna's biggest round?

Its most recent round, $109M in Aug 2023, is also its largest on record.

### Who backed Alltrna first?

Alltrna's first round on record, in Aug 2023, was backed by Flagship Pioneering.

### What stage is Alltrna at?

Alltrna's latest named round is a Series B, in Aug 2023.

### Where is Alltrna based?

Alltrna is based in the United States.

## Companies like Alltrna

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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