United States · 
Who invested in Rallybio?
Rallybio's investors include Canaan, Connecticut Innovations, 5AM Ventures and New Leaf.
2018201920202021202220232024
$37MSeries A$6.6MRound
United States · Funded startup
Who invested in Rallybio
Funding summaryUpdated 26 Oct 2026
$44Mraised across 2 rounds since 2018, from 2 sources
$37MSeries A$6.6MRound
- Latest round
- Round, $6.6MApr 2024
- Biggest round
- $37MSeries A · Apr 2018
- Investors
- 4
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $37M Apr 2018
- Biggest round
- $37M Series A · Apr 2018
- Between rounds
- 5.9 years from the last two
The rounds
- Apr 2024Round$6.6M3 returning
Source recordedSEC filing: $6.6M sold, first sale Apr 2024
- Apr 2018Series A$37M4 new
Reported by FinSMEsSEC filing: $6.0M sold, first sale Apr 2018
Founders and team
From the SEC filings it signed: 2 on the team.
- Jonathan I. LieberExecutive Officeri
- Stephen UdenExecutive Officer, Directori
On the board, as filediChristine A. NashHelen M. BoudreauHui M. LiuKush M. ParmarLucian M. IancoviciMartin W. MackayPaula M. SoteropoulosRob K. HopfnerRonald M. HuntWendy 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.
Everyone who backed them
New Leafno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
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.
Quick answers about Rallybio
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.
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