Greenwich
GLSI

Greenwich (GLSI) stock price, chart and financials

Price chart

+50.49% over 1Y
Oct 13, 2025Low $7.85 · High $33.57Oct 13, 2026

Company profile

Greenwich LifeSciences Inc a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, Flamingo-01, which is evaluating GLSI-100, an immunotherapy to prevent breast cancer recurrences. GP2 is a 9-amino-acid transmembrane peptide of the HER2/neu protein, a cell surface receptor protein that is expressed in a variety of common cancers, including breast cancers at low (1+), intermediate (2+), and high (3+ or overexpressing) levels.

Frequently asked questions

  • How do I buy stock in Greenwich (GLSI)?

    GLSI trades commission-free with a Light Horse Securities brokerage account — from the mobile app, the web at Light Horse Dashboard, the trading API, or an AI agent connected over MCP. The trade panel on this page places the order once you are signed in.

Quotes and charts are not real-time and must not be relied on for trade decisions or valuation.

This page is for informational purposes only. Nothing on it is a recommendation, solicitation or offer to buy or sell any security, nor investment, legal or tax advice. Light Horse Securities Inc does not verify third-party data and is not responsible for its accuracy, completeness or timeliness.