Rallybio Corporation (RLYB)

NASDAQ: RLYB · Real-Time Price · USD
8.80
+0.02 (0.23%)
At close: Apr 28, 2026, 4:00 PM EDT
8.80
0.00 (0.00%)
After-hours: Apr 28, 2026, 4:00 PM EDT
0.23%
Market Cap 46.39M
Revenue (ttm) 858,000
Net Income (ttm) -8.98M
Shares Out 5.29M
EPS (ttm) -1.59
PE Ratio n/a
Forward PE n/a
Dividend n/a
Ex-Dividend Date n/a
Volume 72,770
Open 8.79
Previous Close 8.78
Day's Range 8.68 - 9.07
52-Week Range 2.16 - 11.49
Beta -1.20
Analysts n/a
Price Target n/a
Earnings Date May 11, 2026

About RLYB

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 ... [Read more]

Industry Biotechnology
Sector Healthcare
IPO Date Jul 29, 2021
Employees 14
Stock Exchange NASDAQ
Ticker Symbol RLYB
Full Company Profile

Financial Performance

In 2025, Rallybio's revenue was $858,000, an increase of 34.91% compared to the previous year's $636,000. Losses were -$8.98 million, -84.46% less than in 2024.

Financial Statements

News

Tiny Biotech Rallybio Stock Surges As $500 Million-Backed Merger Fuels Investor Optimism

Rallybio Corporation (NASDAQ: RLYB) shares are up Monday following a merger agreement with Candid Therapeutics Inc.

2 months ago - Benzinga

Rallybio Transcript: M&A announcement

The merger creates a leading TCE therapeutics company for autoimmune diseases, combining robust pipelines and over $500 million in capital to advance multiple candidates into late-stage clinical trials. The combined entity aims for global leadership and accelerated development timelines.

2 months ago - Transcripts

Rallybio Corporation and Candid Therapeutics Announce Merger Agreement

NEW HAVEN, Conn. & SAN DIEGO--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB) ("Rallybio") and Candid Therapeutics, Inc. ("Candid"), a global clinical-stage biotechnology company advancing a lead...

2 months ago - Business Wire

Rallybio Shares Successful Early-Stage Results for Rare Disease Drug; New Trial Set for Late 2026

Complement-mediated diseases arise from overactivation or dysfunction of the complement system, a part of the innate immune system.

2 months ago - Benzinga

Rallybio Announces Positive Data for RLYB116 Phase 1 Study Demonstrating Complete and Sustained Inhibition of Terminal Complement

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

2 months ago - Business Wire

Rallybio Announces Reverse Stock Split of Common Stock

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB) will effect a one-for-eight reverse stock split of its issued and outstanding common stock. Stockholders of Rallybio approved an ...

2 months ago - Business Wire

Rallybio Transcript: EGM 2026

Stockholders approved an amendment for a reverse stock split at a ratio between 1:5 and 1:20, with a quorum of 82.81% present. Final results will be disclosed in a Form 8-K within four business days.

3 months ago - Transcripts

Rallybio Reports Third Quarter 2025 Financial Results and Provides Business Updates

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

6 months ago - Business Wire

Rallybio Completes Dosing of First Cohort in RLYB116 Phase 1 Confirmatory Pharmacokinetic/Pharmacodynamic Study

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

7 months ago - Business Wire

Rallybio Receives $12.5 Million Equity Milestone Payment from Recursion for Advancement of REV102 Program

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

8 months ago - Business Wire

Rallybio Reports Second Quarter 2025 Financial Results and Provides Business Updates

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

9 months ago - Business Wire

Why Is Microcap Rallybio Stock Trading Higher On Tuesday?

Rallybio Corporation RLYB agreed on Tuesday to sell its interest in REV102, an ENPP1 inhibitor in preclinical development for hypophosphatasia (HPP), to joint venture partner Recursion Pharmaceuticals...

10 months ago - Benzinga

Rallybio Sells Interest in REV102 Program to Recursion Pharmaceuticals

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

10 months ago - Business Wire

Rallybio Initiates Dosing in RLYB116 Phase 1 Confirmatory Pharmacokinetic/Pharmacodynamic Study

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

11 months ago - Business Wire

Rallybio Reports First Quarter 2025 Financial Results and Provides Business Updates

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire

Rallybio Transcript: The Citizens JMP Life Sciences Conference 2025

RLYB212 was discontinued due to clinical limitations, shifting focus to RLYB116, a novel C5 inhibitor targeting rare diseases like APS, with adaptive clinical trials and data readouts expected in Q3 and Q4. Preclinical ENPP1 inhibitor data and financial updates are also anticipated soon.

1 year ago - Transcripts

Rallybio to Present at the 2025 Citizens JMP Life Sciences Conference

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire

Rallybio Stock Plunges After Program For Pediatric Bleeding Disorder Disappoints

Rallybio Corporation  RLYB on Tuesday discontinued the RLYB212 program to prevent fetal and neonatal alloimmune thrombocytopenia (FNAIT).

1 year ago - Benzinga

Rallybio to Discontinue Development of RLYB212 for Prevention of FNAIT

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire

Rallybio Reports Fourth Quarter and Full Year 2024 Financial Results and Provides Business Updates

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire

Rallybio Transcript: TD Cowen 45th Annual Healthcare Conference

Three rare disease programs are advancing, with the FNAIT prevention trial enrolling its first pregnant patient and data expected in 2Q/3Q. The complement Factor V inhibitor and ENPP1 inhibitor are progressing, targeting significant unmet needs and market opportunities.

1 year ago - Transcripts

Rallybio to Present at the TD Cowen 45th Annual Health Care Conference

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire

Rallybio Announces Initiation of Dosing in RLYB212 Phase 2 Clinical Trial

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire

Rallybio Highlights 2024 Accomplishments and Anticipated Milestones for 2025

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire

Rallybio Announces Promising RLYB212 and RLYB332 Preclinical Data at the 66th American Society of Hematology Annual Meeting

NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB), a clinical-stage biotechnology company translating scientific advances into transformative therapies for patients with devastati...

1 year ago - Business Wire