Rallybio - About the company
Rallybio is a public company based in Farmington (United States), founded in 2018 by Martin Mackay and Stephen Uden. It operates as a Developer of antibodies & protein therapies for rare disorders. Rallybio has raised $182M in funding from investors like Canaan, New Leaf Venture Partners and 5AM Ventures. The company has 284 active competitors, including 76 funded and 98 that have exited. Its top competitors include companies like BridgeBio, Alnylam and PTC Therapeutics.
Company Details
Developer of antibodies & protein therapies for rare disorders. The company is building a broad and sustainable pipeline of product candidates to treat rare diseases in the areas of hematology, immuno-inflammation, maternal fetal health, ophthalmology, and metabolic disorders.
- Website
- rallybio.com
- Phone Number
- +1 **********
Key Metrics
Founded Year
2018
Location
Farmington, United States
Stage
Public
Total Funding
$182M in 3 rounds
Latest Funding Round
Ranked
21st among 284 active competitors
Annual Revenue
$0 - $1M as on Dec 31, 2025
Employee Count
22 as on Sep 30, 2026
Exit Details
Public
Legal entities associated with Rallybio
Rallybio is associated with 1 legal entity given below:
Legal Entity Name | Date of Incorporation | Revenue | Latest Employee Count | Reports |
|---|---|---|---|---|
RALLYBIO CORP CIN: 1739410 , United States, Active | May 06, 2018 | $0 - $1M (As on Dec 31, 2025) | 43 (As on Dec 31, 2023) | - |
Rallybio's IPO details
Rallybio got listed on Jul 29, 2021.
Click here to take a look at Rallybio's IPO in detail
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Rallybio's funding and investors
Rallybio has raised a total funding of $182M over 3 rounds. Its first funding round was on Apr 20, 2018. Rallybio has 13 institutional investors.
Here is the list of recent funding rounds of Rallybio:
Date of Funding | Funding Amount | Round Name | Post-Money Valuation | Revenue Multiple | Lead Investors | Other Investors |
|---|---|---|---|---|---|---|
Apr 10, 2024 | 1214442 | Post IPO | 7445269 | 8606441 | 9463982 | 2742488 |
Mar 27, 2020 | 8418937 | Series B | 1609395 | 5049927 | 7162616 | |
Apr 20, 2018 | 4578848 | Series A | 7421636 | 7769288 |
View details of Rallybio's funding rounds and investors
Rallybio's founders and board of directors
Founder? Claim ProfileHere are the details of Rallybio's key team members:
- Martin Mackay: Co-Founder & CEO of Rallybio.
- Stephen Uden: Co-Founder of Rallybio. Contact Info: 1 email address
View details of Rallybio's Founder profiles and Board Members
Rallybio's employee count trend
Rallybio has 22 employees as of Sep 26. Here is Rallybio's employee count trend over the years:
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Rallybio's Competitors and alternates
Top competitors of Rallybio include BridgeBio, Alnylam and PTC Therapeutics. Here is the list of Top 10 competitors of Rallybio, ranked by Tracxn score:
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Rank | Company Details | Short Description | Total Funding | Investors | Tracxn Score |
|---|---|---|---|---|---|
1st | BridgeBio 2015, Palo Alto (United States), Public | Developer of therapeutics for the treatment of genetic diseases | $434M | 81/100 | |
2nd | Alnylam 2002, Cambridge (United States), Public | Developer of RNA interference-based therapeutics for multiple disorders | $17M | 80/100 | |
3rd | PTC Therapeutics 1998, South Plainfield (United States), Public | Developer of small molecule drugs for the treatment of rare diseases | $248M | 77/100 | |
4th | Spark Therapeutics 2013, Philadelphia (United States), Acquired | Developer of gene therapy for rare diseases | $82.8M | 73/100 | |
5th | Blueprint Medicines 2008, Cambridge (United States), Acquired | Developer of selective kinase inhibitors for patients with genomically defined cancers | $115M | 71/100 | |
6th | Bluebird Bio 1992, Cambridge (United States), Acquired | Developer of gene therapies for severe genetic and rare diseases | $136M | 71/100 | |
7th | Agios Pharmaceuticals 2008, Cambridge (United States), Public | Developer of therapeutics in the field of cancer metabolism and rare genetic disorders of metabolism | $120M | 70/100 | |
8th | Rhythm Pharmaceuticals 2010, Boston (United States), Public | Developer of peptide therapeutics for the treatment of rare genetic deficiencies | $84M | 70/100 | |
9th | Regenxbio 2008, Rockville (United States), Public | Developer of AAV Gene Therapy for rare genetic diseases | $108M | 67/100 | |
10th | Ionis 1989, United States, Public | Developer of RNA-targeted medicines for various diseases | - | 67/100 | |
21st | Rallybio 2018, Farmington (United States), Public | Developer of antibodies & protein therapies for rare disorders | $182M | 64/100 |
Looking for more details on Rallybio's competitors? Click here to see the top ones
Rallybio's Investments and acquisitions
Rallybio has made no investments or acquisitions yet.
Reports related to Rallybio
Here is the latest report on Rallybio's sector:
News related to Rallybio
Media has covered Rallybio for a total of 11 events in the last 1 year, 2 of them have been about company updates.
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Shareholder Alert: M&A Class Action Firm Investigates Mergers for NCSM, GBTG, LEG, and LPSNPR Newswire•Jul 10, 2026•Weatherford, NCS Multistage, Peoples State Bank, Monteverde and 2 others
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Rallybio merger scrapped; New Haven biotech to receive $50M breakup feeHartford Business Journal•May 04, 2026•Candid Therapeutics, Rallybio
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Mergers and Acquisitions (M&A): Rallybio (NASDAQ: RLYB) and Candid Therapeutics Announce Mergerintelligence360•Mar 23, 2026•Candid Therapeutics, Rallybio
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Rallybio to acquire Candid TherapeuticsPharmaceutical Business Review•Mar 03, 2026•Candid Therapeutics, Rallybio
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Rallybio Stock Surges As $500 Million-Backed Merger Fuels Investor OptimismBenzinga•Mar 02, 2026•Candid Therapeutics, Rallybio
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Rallybio Announces Positive Data for RLYB116 Phase 1 Study Demonstrating Complete and Sustained Inhibition of Terminal ComplementBusiness Wire•Feb 17, 2026•Rallybio
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Rallybio Reports Third Quarter 2025 Financial Results and Provides Business UpdatesBusiness Wire•Nov 06, 2025•Rallybio
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