Rallybio Corporation (RLYB)
NASDAQ: RLYB · Real-Time Price · USD
8.80
+0.02 (0.23%)
Apr 28, 2026, 4:00 PM EDT - Market closed

Company Description

Rallybio Corporation, a clinical-stage biotechnology company, engages in the development and commercialization of life-transforming therapies for patients suffering from severe and rare diseases.

Its lead product candidate is the RLYB116, an inhibitor of complement component 5 (C5) to treat several diseases of complement dysregulation which has completed phase 1 trial; and RLYB332, a preclinical antibody, for the treatment of severe anemia with ineffective erythropoiesis and iron overload.

The company has a strategic alliance with AbCellera to discover, develop, and commercialize novel antibody-based therapeutics for rare diseases, as well as collaboration agreement with Johnson & Johnson to provide therapeutic solutions for pregnant individuals at risk of fetal and neonatal alloimmune thrombocytopenia.

Rallybio Corporation was founded in 2018 and is headquartered in New Haven, Connecticut.

Rallybio Corporation
Rallybio logo
Country United States
Founded 2018
IPO Date Jul 29, 2021
Industry Biotechnology
Sector Healthcare
Employees 14
CEO Stephen Uden

Contact Details

Address:
234 Church Street
New Haven, Connecticut 06510
United States
Phone 203 859 3820
Website rallybio.com

Stock Details

Ticker Symbol RLYB
Exchange NASDAQ
Stock Type Common Stock
Fiscal Year January - December
Reporting Currency USD
IPO Price $13.00
CIK Code 0001739410
CUSIP Number 75120L209
ISIN Number US75120L2097
Employer ID 85-1083789
SIC Code 2834

Key Executives

Name Position
Dr. Stephen Uden M.D., MBBS Co-Founder, President, Chief Executive Officer and Director
Dr. Martin W. MacKay Ph.D. Co-Founder and Chairman
Jonathan I. Lieber M.B.A. Chief Financial Officer and Treasurer

Latest SEC Filings

Date Type Title
Apr 24, 2026 S-4/A Filing
Apr 13, 2026 SCHEDULE 13G/A Filing
Mar 31, 2026 8-K Current Report
Mar 17, 2026 S-4 Filing
Mar 16, 2026 10-K Annual Report
Mar 6, 2026 SCHEDULE 13G/A Filing
Mar 6, 2026 SCHEDULE 13G Filing
Mar 3, 2026 SCHEDULE 13D/A Filing
Mar 2, 2026 425 Filing
Mar 2, 2026 8-K Current Report