# Rallybio funding: rounds and investors

> Rallybio has raised $44M across 2 rounds since 2018. Investors include Canaan, Connecticut Innovations and 5AM Ventures. Every round with its source.

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

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

# Who invested in *Rallybio*

2 rounds we have observed, with the 4 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 Pharma

Funding summary Updated 26 Oct 2026

**$44M** raised across 2 rounds since 2018, from 2 sources

**$37M** Series A **$6.6M** Round

- **Latest round:** Round, $6.6M Apr 2024
- **Biggest round:** $37M Series A · Apr 2018
- **Investors:** 4

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.

2018 2019 2020 2021 2022 2023 2024

**$37M** Series A

**$6.6M** Round

- **First round:** Series A, $37M
- **Biggest round:** $37M
- **Between rounds:** 5.9 years

## The rounds

- **Apr 2024** Round **$6.6M** *3 returning* [Canaan](https://millionrounds.com/fund/canaan-partners) [Connecticut Innovations](https://millionrounds.com/fund/connecticut-innovations) [5AM Ventures](https://millionrounds.com/fund/5am-ventures) Source recorded SEC filing: $6.6M sold, first sale Apr 2024
- **Apr 2018** Series A **$37M** *4 new* [Canaan](https://millionrounds.com/fund/canaan-partners) [Connecticut Innovations](https://millionrounds.com/fund/connecticut-innovations) [5AM Ventures](https://millionrounds.com/fund/5am-ventures) New Leaf Reported by FinSMEs SEC filing: $6.0M sold, first sale Apr 2018

## Founders and team

From the SEC filings it signed: 2 on the team.

- **Jonathan I. Lieber** Executive Officer i
- **Stephen Uden** Executive Officer, Director i

On the board, as filed i *Christine A. Nash* *Helen M. Boudreau* *Hui M. Liu* *Kush M. Parmar* *Lucian M. Iancovici* *Martin W. Mackay* *Paula M. Soteropoulos* *Rob K. Hopfner* *Ronald M. Hunt* *Wendy K. Chung*

## 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.

**Series A** 2018 **Round** 2024 [Canaan](https://millionrounds.com/fund/canaan-partners) [Connecticut Innovations](https://millionrounds.com/fund/connecticut-innovations) [5AM Ventures](https://millionrounds.com/fund/5am-ventures) New Leaf

## Everyone who backed them

[Canaan](https://millionrounds.com/fund/canaan-partners) VC firm **2** rounds

[Connecticut Innovations](https://millionrounds.com/fund/connecticut-innovations) Government **2** rounds

[5AM Ventures](https://millionrounds.com/fund/5am-ventures) VC firm **2** rounds

New Leaf no record of our own yet **1** round

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

## Also claim to have backed them

This firm lists Rallybio as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[Solasta Ventures](https://millionrounds.com/fund/solasta-ventures) VC firm Per its own site

## Quick answers about Rallybio

### Who invested in Rallybio?

Rallybio's investors include Canaan, Connecticut Innovations, 5AM Ventures and New Leaf.

### How much has Rallybio raised?

Rallybio has raised $44M across 2 rounds since 2018.

### When did Rallybio last raise?

Rallybio's most recent round was an Undisclosed round of $6.6M in Apr 2024.

### What was Rallybio's biggest round?

Rallybio's largest round on record is $37M (Series A), in Apr 2018.

### Who backed Rallybio first?

Rallybio's first round on record, in Apr 2018, was backed by Canaan, Connecticut Innovations and 5AM Ventures and 1 others.

### What stage is Rallybio at?

Rallybio's latest named round is an Undisclosed round, in Apr 2024.

### Where is Rallybio based?

Rallybio is based in the United States.

## Companies like Rallybio

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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