GLSI (Greenwich LifeSciences) Tax Rate %: 0.00% (As of Mar. 2026)


GLSI Greenwich LifeSciences Inc GLSI
35 GF Score
Price $18.55
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What is Greenwich LifeSciences Tax Rate %?

Greenwich LifeSciences GLSI -9.15% 35 Tax Rate % is 0.00% as of Mar. 2026. GuruFocus rates GLSI with a GF Score™ of 35/100. The stock has 1 warning sign investors should review.

Tax Rate % is calculated as Tax Expense divided by its Pre-Tax Income. Greenwich LifeSciences's Tax Expense for the three months ended in Mar. 2026 was $0.00 Mil. Greenwich LifeSciences's Pre-Tax Income for the three months ended in Mar. 2026 was $-5.66 Mil. Therefore, Greenwich LifeSciences's Tax Rate % for the quarter that ended in Mar. 2026 was 0.00%.

Greenwich LifeSciences Tax Rate % Related Terms

Greenwich LifeSciences Tax Rate % Historical Data

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The historical data trend for Greenwich LifeSciences's Tax Rate % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Greenwich LifeSciences Tax Rate % Chart

Greenwich LifeSciences Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Tax Rate %
Get a 7-Day Free Trial 0.00 0.00 0.00 0.00 0.00

Greenwich LifeSciences Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Tax Rate % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00
GLSI
35GF Score
Greenwich LifeSciences Inc GLSI
Tax Rate % is just one metric. See GF Score™, valuation, warning signs, and more.
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Greenwich LifeSciences Tax Rate % Calculation

Tax Rate % is the ratio of tax expense divided by pretax income, usually presented in percent.

Greenwich LifeSciences's Tax Rate % for the fiscal year that ended in Dec. 2025 is calculated as

Tax Rate %=Tax Expense (A: Dec. 2025 )/Pre-Tax Income (A: Dec. 2025 )
=0/-19.358
=0.00 %

Greenwich LifeSciences's Tax Rate % for the quarter that ended in Mar. 2026 is calculated as

Tax Rate %=Tax Expense (Q: Mar. 2026 )/Pre-Tax Income (Q: Mar. 2026 )
=0/-5.657
=0.00 %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Tax Rate % →
What does a Tax Rate % of 0.00% mean?
Greenwich LifeSciences (GLSI) has a Tax Rate % of 0.00% as of Mar. 2026.
Is Greenwich LifeSciences' Tax Rate % too high?
Greenwich LifeSciences' current Tax Rate % is 0.00%. Overall, Greenwich LifeSciences has a GF Score™ of 35/100, reflecting its overall financial health beyond just this single metric.
How does Greenwich LifeSciences' Tax Rate % compare to SABS and SRZN?
Greenwich LifeSciences' Tax Rate % of 0.00% can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Tax Rate % for a Biotechnology company?
A good Tax Rate % depends on the Biotechnology industry context. However, Tax Rate % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Tax Rate % mean?
A high Tax Rate % can signal that a stock is expensive relative to its fundamentals. Greenwich LifeSciences's current Tax Rate % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Greenwich LifeSciences stock overvalued right now?
Greenwich LifeSciences (GLSI) has a current Tax Rate % of 0.00%. The current Tax Rate % is 0.00%. Greenwich LifeSciences' overall GF Score™ is 35/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Tax Rate % calculated?
Tax Rate % is calculated from a company's financial statements. For Greenwich LifeSciences (GLSI), the current Tax Rate % is 0.00% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Greenwich LifeSciences Business Description

Address 3992 Bluebonnet Drive, Building 14, Stafford, TX, USA, 77477
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.
35GF Score

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