SCHEDULE: FMR LLC Reports 15% Stake in Rallybio Corp

FMR LLC and Abigail P. Johnson have reported beneficial ownership of 15.0% of Rallybio Corp's common stock as of June 30, 2026.

Summary

• FMR LLC, through its subsidiaries and affiliates, along with Abigail P. Johnson, has filed a Schedule 13G amendment.
• As of June 30, 2026, FMR LLC and Abigail P. Johnson collectively beneficially own 794,720 shares of Rallybio Corp common stock.
• This represents 15.0% of the total outstanding common stock of Rallybio Corp.
• Fidelity Growth Company Commingled Pool holds 265,132 shares, or 5.0% of the outstanding common stock.

Sentiment

Score: 3

Explanation: StockSavvy.ai views this as a neutral filing, primarily reporting on beneficial ownership changes rather than company performance or strategic shifts.

Positives

• FMR LLC and Abigail P. Johnson maintain a significant stake, indicating continued investor confidence or strategic interest in Rallybio Corp.
• The filing clearly delineates ownership percentages, providing transparency to the market.

Negatives

• The filing does not provide any financial performance data or operational updates for Rallybio Corp.
• No new strategic initiatives or significant business developments are disclosed.

Risks

• Concentration of ownership by a single entity or related group could potentially influence corporate decisions.
• Changes in beneficial ownership, even if not disposals, can sometimes precede shifts in investment strategy or market sentiment.

Future Outlook

This filing does not contain any forward-looking statements or guidance regarding Rallybio Corp's future performance or strategy.

Management Comments

• FMR LLC and Abigail P. Johnson certify that the securities were not acquired or held for the purpose of or with the effect of changing or influencing the control of the issuer.
• The filing does not contain direct quotes from Rallybio Corp management, but rather from the reporting persons (FMR LLC and Abigail P. Johnson).

Industry Context

StockSavvy.ai notes that Schedule 13G filings typically report passive ownership stakes by institutional investors. This filing indicates a significant, but likely passive, investment by FMR LLC in Rallybio Corp, a biotechnology company.

Comparison to Industry Standards

• Institutional ownership of 15.0% is a substantial stake for a single reporting entity in the biotechnology sector, often indicating a belief in the company's long-term potential.
• Competitors in the biotechnology space often see similar levels of institutional investment, though the specific percentage can vary widely based on company stage and market capitalization.

Stakeholder Impact

• Shareholders receive transparency regarding a significant ownership block held by FMR LLC and Abigail P. Johnson.
• The market gains clarity on the investment position of a major financial entity in Rallybio Corp.

Next Steps

• Rallybio Corp may see continued analyst coverage focusing on its biotechnology pipeline and development progress.
• Further filings from FMR LLC or other institutional investors may provide additional insights into ownership trends.

Key Dates

Keywords

Rallybio Corp, FMR LLC, Abigail P. Johnson, Schedule 13G, Beneficial Ownership, Common Stock, Investment Management