Greenwich LifeSciences, Inc. (GLSI)
About Greenwich LifeSciences, Inc.
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 expression in 75 percent of breast cancers at low (1+), intermediate (2+), and high (3+ or over-expressor) levels. The combination of GP2 + GM-CSF is called GLSI-100. The company is currently expanding Flamingo-01 into Europe with plans to open up to 150 sites globally.
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Financial summary
- Net income
- -$19.4M
- Total assets
- $6.2M
- Market cap
- $326.6M
Source: SEC EDGAR · updated Jun 7, 2026
Revenue & profit trend
Financial statements
Income statement
- Revenue
- $0
- Operating expenses
- $19.4M
- Operating income
- -$19.4M
- Net income
- -$19.4M
- EPS (basic)
- $-1.43
- EPS (diluted)
- $-1.43
Balance sheet
- Total assets
- $6.2M
- Current assets
- $6.2M
- Total liabilities
- $5.8M
- Current liabilities
- $5.8M
- Shareholders’ equity
- $353.2K
Cash flow
- Financing cash flow
- $12.0M
- Net cash flow
- $12.0M
Statements via Polygon.io (SEC filings)
15-minute delayed · data by Polygon.io
Past year · hover for prices
52-week range
- Market cap
- $326.6M
- EPS (diluted)
- $-1.43
- Shares outstanding
- 25.2M
- Open
- —
- Day range
- –
- Prev close
- —
- Volume
- —
- IPO date
- Sep 25, 2020
Greenwich LifeSciences, Inc. (GLSI) Stock Price
- Reported a net loss of $19.4M.
- Trading 61% below its 52-week high.
Automatically generated from public filings and market data. Informational only — not investment advice or a recommendation to buy or sell any security.
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News about Greenwich LifeSciences, Inc.
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Greenwich LifeSciences, Inc.: frequently asked questions
Is Greenwich LifeSciences, Inc. an American company?
Greenwich LifeSciences, Inc. is a US-based company headquartered in Stafford, Texas, listed in the americancompanies.com directory of American companies. Its American-origin credentials have not yet been independently verified.
Where is Greenwich LifeSciences, Inc. headquartered?
Greenwich LifeSciences, Inc. is headquartered in Stafford, Texas, United States.
Is Greenwich LifeSciences, Inc. publicly traded?
Yes — Greenwich LifeSciences, Inc. is a publicly traded company. Its stock trades under the ticker symbol GLSI on the NASDAQ.
What does Greenwich LifeSciences, Inc. do?
Greenwich LifeSciences, Inc. is an American Pharmaceuticals company in the Health & Beauty sector.
