# Rallybio (RLYB) — Overview

RLYB · NASDAQ · Stock

Canonical page: https://www.lighthorse.io/tickers/rlyb

## Price

Last close $16.20 on Oct 16, 2026. 52-week range $4.28 – $17.22.

## Company profile

Rallybio Corp is a clinical-stage biotechnology company comprised of experienced biopharma industry leaders with extensive research, development, and rare disease expertise with a mission to develop and commercialize life-transforming therapies for patients with severe and rare diseases. The company's program, RLYB116, is a differentiated complement component 5 (C5) inhibitor with the potential to treat diseases of complement dysregulation. The Company manages its operations as a single segment for the purposes of allocating resources, assessing performance, and making operating decisions. Rallybio's pipeline also includes RLYB332, a preclinical long-acting matriptase-2 antibody for the treatment of diseases of iron overload.

## Frequently Asked Questions

### How do I buy stock in Rallybio (RLYB)?

RLYB trades commission-free with a Light Horse Securities brokerage account — from the mobile app, the web at [Light Horse Dashboard](https://portal.lighthorse.io), the trading API, or an [AI agent connected over MCP](/instructions/ai/claude). The trade panel on this page places the order once you are signed in.

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