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GLSI Overview

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Intellectia

Loading chart...

High
24.825
Open
24.520
VWAP
23.51
Vol
185.38K
Mkt Cap
317.41M
Low
22.800
Amount
4.36M
EV/EBITDA(TTM)
--
Total Shares
13.85M
EV
335.91M
EV/OCF(TTM)
--
P/S(TTM)
--
Greenwich LifeSciences, Inc. is a clinical-stage biopharmaceutical company focused on the development of GP2, an immunotherapy to prevent breast cancer recurrences in patients who have previously undergone surgery. GP2 is a 9-amino acid transmembrane peptide of the human epidermal growth factor receptor 2 (HER2) /neu protein, a cell surface receptor protein that is expressed in a variety of common cancers. It has commenced a Phase III clinical trial, Flamingo-01, an immunotherapy to prevent breast cancer recurrences. GP2 is delivered in combination with granulocyte-macrophage colony-stimulating factor (GM-CSF) to induce GP2 peptide-specific immunity. GP2 treatment is administered via an intradermal injection by mixing GP2 peptide and GM-CSF at the time of administration. Its cancer immunotherapy seeks to stimulate an individual's immune system to selectively attack cancer cells while not affecting normal cells or to deliver immune system components to inhibit the spread of cancer.
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Events Timeline

(ET)
2026-04-20
06:20:00
Greenwich LifeSciences Presents Preliminary Data from FLAMINGO-01 Trial
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2026-03-19 (ET)
2026-03-19
06:10:00
Greenwich LifeSciences Initiates New Clinical Trials in the US
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2026-03-17 (ET)
2026-03-17
06:20:00
Greenwich LifeSciences Updates GLSI-100 Clinical Trial Progress
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2026-03-16 (ET)
2026-03-16
06:30:00
Greenwich LifeSciences Updates on GP2 Drug Progress
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2026-03-03 (ET)
2026-03-03
06:10:00
Greenwich LifeSciences Updates Patient Screening Rate for FLAMINGO-01 Trial
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2026-01-27 (ET)
2026-01-27
06:10:00
Greenwich LifeSciences Updates Cash Burn Rate and Financing Strategy
select
2026-01-22 (ET)
2026-01-22
06:20:00
Greenwich LifeSciences Updates on GP2 Clinical Trial Progress
select

News

stocktwits
8.5
04-20stocktwits
PinnedGreenwich LifeSciences Expands Vaccine Trial to Broader Patient Population
  • Trial Expansion Plans: CEO Snehal Patel announced that the FDA has reviewed plans to expand the trial to include all patient types, with over 1,300 patients enrolled, indicating a significant market opportunity for the breast cancer vaccine.
  • Significant Immune Response Increase: Data presented at the 2026 AACR Annual Meeting revealed that the vaccine candidate GLSI-100 showed nearly a 4-fold increase in immune response in non-HLA-A*02 patients, with some patients improving by 2 to 8 times, demonstrating its broader applicability.
  • Clinical Trial Results: In the Phase III FLAMINGO-01 trial, delayed-type hypersensitivity (DTH) responses in the specific HLA-A*02 patient cohort increased fourfold from month 4 to 6 of treatment, indicating significant immune activation by the vaccine.
  • Positive Market Reaction: Shares of Greenwich LifeSciences rose over 2% in premarket trading on Monday, and the stock has increased by over 28% year-to-date, reflecting bullish sentiment among retail investors regarding the company's prospects.
NASDAQ.COM
9.0
04-20NASDAQ.COM
Greenwich LifeSciences Presents Significant Data from GLSI-100 Phase III Trial
  • Significant Immune Response: In the FLAMINGO-01 trial, 247 non-HLA-A*02 patients receiving GLSI-100 showed an increase in immune responses from 5.2% at baseline to 20.4% at four or six months, with statistical significance at p < 0.001, indicating the drug's effectiveness in activating the immune system against recurrent breast cancer.
  • Reduction in Recurrence Rates: Preliminary analyses suggest a 70-80% reduction in recurrence rates after the primary immunization series in non-HLA-A*02 patients, consistent with earlier Phase IIb results, further validating the therapeutic potential of GLSI-100.
  • Trial Design and Patient Recruitment: The FLAMINGO-01 trial has screened over 1,300 patients across U.S. and European sites, reflecting strong patient interest, with a design that includes six initial GLSI-100 injections over six months followed by booster doses every six months, aiming for long-term protection.
  • Market Performance and Stock Dynamics: GLSI's stock has traded between $7.78 and $34.10 over the past year, closing at $27.74, up 2.36% from the previous trading day, indicating a positive market reaction to its clinical data.
Newsfilter
8.5
04-14Newsfilter
Greenwich LifeSciences Updates Financing Strategy Amid Phase III Trial Progress
  • Financing Strategy Update: Greenwich LifeSciences has successfully utilized its ATM financing vehicle to raise funds exceeding its cash burn rate in Q1 2026, resulting in a cash balance of approximately $10.5 million, indicating financial stability during its clinical trial phase.
  • Clinical Trial Progress: In the FLAMINGO-01 trial, over 1,000 patients have been screened, with all 250 patients in the non-HLA-A*02 arm fully enrolled, representing five times the number of treated patients compared to the Phase IIb trial, highlighting the company's potential in breast cancer recurrence prevention.
  • Significant Recurrence Rate Reduction: Preliminary data indicates a 70-80% reduction in recurrence rates in the non-HLA-A*02 arm after completing the Primary Immunization Series, aligning with the 80% reduction observed in the Phase IIb trial, showcasing the efficacy of GLSI-100.
  • Global Clinical Network Expansion: The FLAMINGO-01 trial plans to open up to 150 clinical trial sites globally, with approximately 500 HLA-A*02 patients expected to participate, aiming to enhance the reliability of clinical outcomes and strengthen market competitiveness through extensive data collection.
Newsfilter
8.5
04-07Newsfilter
Greenwich LifeSciences Updates Patent Claims for GLSI-100
  • Patent Claims Expansion: Based on statistically significant immune response and recurrence rate data from the FLAMINGO-01 trial, Greenwich LifeSciences has filed new patent claims asserting that GLSI-100 clinically benefits non-HLA-A*02 patients, potentially doubling the market to 88,000 new patients annually, significantly enhancing the company's revenue prospects in the breast cancer immunotherapy market.
  • Clinical Trial Progress: The FLAMINGO-01 trial has screened over 1,000 patients, with the 250-patient non-HLA-A*02 arm fully enrolled, all receiving GLSI-100, demonstrating an 80% reduction in recurrence rates similar to Phase IIb trial results, indicating the therapy's efficacy and safety.
  • Market Potential: CEO Snehal Patel highlighted that the new patent claims support a market potential of up to $10 billion annually for GLSI-100, with the company already enrolling both HLA-A02 and non-HLA-A02 patients in FLAMINGO-01 to leverage increased statistical power from combined analyses.
  • Future Outlook: If the patent claims are granted, they could provide patent protection through 2045, further solidifying the company's competitive position in breast cancer immunotherapy while laying the groundwork for future clinical research and market expansion.
NASDAQ.COM
9.0
03-17NASDAQ.COM
Greenwich LifeSciences Reports Promising Phase 3 Trial Data for GLSI-100
  • Clinical Trial Results: Greenwich LifeSciences' Phase 3 FLAMINGO-01 trial shows that breast cancer recurrence rates in patients receiving GLSI-100 dropped to less than 1% per year, an 83% reduction compared to the historical 4% rate, marking a significant advancement for the immunotherapy candidate.
  • Patient Data Analysis: The open-label arm of the trial includes 250 patients without the HLA-A*02 genetic marker, all of whom received GLSI-100 after standard treatment with Kadcyla; after an average follow-up of 1.2 years, the recurrence rate was just 0.7%, demonstrating substantial clinical efficacy.
  • Future Outlook: Although this arm lacks a placebo group, the company assesses efficacy through historical comparisons and plans to update data as more patient years accumulate, with future results expected to be presented at upcoming conferences to further validate the therapy's effectiveness.
  • Market Reaction: GLSI's stock has traded between $7.78 and $34.10 over the past year, closing at $28.13 on Monday with a 5.20% increase, and rising to $33.58 in pre-market trading, up 20%, reflecting positive market expectations for the therapy.
stocktwits
9.5
03-17stocktwits
Greenwich LifeSciences Shares Surge 13% on Positive Immunotherapy Trial Results
  • Successful Immunotherapy Trial: Greenwich LifeSciences announced that its Phase III breast cancer immunotherapy trial, FLAMINGO-01, involving 250 patients, demonstrated an annual recurrence rate below 1%, a significant achievement that not only enhances the company's reputation in cancer treatment but may also attract more investor interest in its future developments.
  • Stock Price Surge: Following the announcement, GLSI shares gained over 13% in pre-market trading on Tuesday, reflecting the market's positive reaction to the clinical trial results, which is expected to further drive the upward trend in the company's stock price.
  • Bullish Market Sentiment: Discussions about Greenwich LifeSciences on the Stocktwits platform trended towards 'extremely bullish', with message volumes reaching 'extremely high' levels, indicating strong investor confidence in the company's future prospects, which may draw more retail investors into the stock.
  • Trending Stock: GLSI became the top trending ticker on Stocktwits, showcasing increased attention and market interest on social media, a trend that could further propel its stock price and enhance market recognition of its products.
Wall Street analysts forecast GLSI stock price to rise
2 Analyst Rating
Wall Street analysts forecast GLSI stock price to rise
2 Buy
0 Hold
0 Sell
Moderate Buy
Current: 0.000
sliders
Low
45.00
Averages
47.50
High
50.00
Current: 0.000
sliders
Low
45.00
Averages
47.50
High
50.00
H.C. Wainwright
Buy
upgrade
$39 -> $50
AI Analysis
2025-12-30
Reason
H.C. Wainwright
Price Target
$39 -> $50
AI Analysis
2025-12-30
upgrade
Buy
Reason
H.C. Wainwright raised the firm's price target on Greenwich LifeSciences to $50 from $39 and keeps a Buy rating on the shares. The firm cites the positive efficacy in the non-HLA-A*02 arm of the ongoing Phase 3 FLAMINGO-01 trial of GLSI-100 in breast cancer for the target boost. GLSI-100 reduced breast cancer recurrence by 80% in the non- HLA-A*02 arm, the analyst tells investors in a research note. H.C. Wainwright views the preliminary data as "highly encouraging," saying it could double the market for GLSI-100.
Noble Capital
Outperform
initiated
$45
2025-08-20
Reason
Noble Capital
Price Target
$45
2025-08-20
initiated
Outperform
Reason
Noble Capital initiated coverage of Greenwich LifeSciences with an Outperform rating and $45 price target. Greenwich is developing GSLI-100, which has completed four clinical trials that lead to the design of the current Phase 3 Flamingo-01 trial for prevention of breast cancer recurrence in high-risk patients, the analyst tells investors. The firm, which estimates market entry by FY28, sees \"large market potential\" for GLSI-100.
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Valuation Metrics

The current forward P/E ratio for Greenwich Lifesciences Inc (GLSI.O) is 0.00, compared to its 5-year average forward P/E of -23.72. For a more detailed relative valuation and DCF analysis to assess Greenwich Lifesciences Inc's fair value, Click here.

Forward PE

The forward P/E ratio is a valuation metric that divides a company's current stock price by its estimated future earnings per share over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average PE
-23.72
Current PE
0.00
Overvalued PE
-1.67
Undervalued PE
-45.76

Forward EV/EBITDA

The forward EV/EBITDA ratio is a valuation metric that divides a company's enterprise value (EV) by its estimated future earnings before interest, taxes, depreciation, and amortization (EBITDA) over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average EV/EBITDA
0.00
Current EV/EBITDA
0.00
Overvalued EV/EBITDA
0.00
Undervalued EV/EBITDA
0.00

Forward PS

The forward P/S ratio is a valuation metric that divides a company's current stock price by its estimated future sales (or revenue) per share over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average PS
0.00
Current PS
0.00
Overvalued PS
0.00
Undervalued PS
0.00

Financials

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Frequently Asked Questions

What is Greenwich Lifesciences Inc (GLSI) stock price today?

The current price of GLSI is 22.91 USD — it has decreased -6.57

What is Greenwich Lifesciences Inc (GLSI)'s business?

Greenwich LifeSciences, Inc. is a clinical-stage biopharmaceutical company focused on the development of GP2, an immunotherapy to prevent breast cancer recurrences in patients who have previously undergone surgery. GP2 is a 9-amino acid transmembrane peptide of the human epidermal growth factor receptor 2 (HER2) /neu protein, a cell surface receptor protein that is expressed in a variety of common cancers. It has commenced a Phase III clinical trial, Flamingo-01, an immunotherapy to prevent breast cancer recurrences. GP2 is delivered in combination with granulocyte-macrophage colony-stimulating factor (GM-CSF) to induce GP2 peptide-specific immunity. GP2 treatment is administered via an intradermal injection by mixing GP2 peptide and GM-CSF at the time of administration. Its cancer immunotherapy seeks to stimulate an individual's immune system to selectively attack cancer cells while not affecting normal cells or to deliver immune system components to inhibit the spread of cancer.

What is the price predicton of GLSI Stock?

Wall Street analysts forecast GLSI stock price to rise over the next 12 months. According to Wall Street analysts, the average 1-year price target for GLSI is47.50 USD with a low forecast of 45.00 USD and a high forecast of 50.00 USD. However, analyst price targets are subjective and often lag stock prices, so investors should focus on the objective reasons behind analyst rating changes, which better reflect the company's fundamentals.

What is Greenwich Lifesciences Inc (GLSI)'s revenue for the last quarter?

Greenwich Lifesciences Inc revenue for the last quarter amounts to 0.00 USD, decreased

What is Greenwich Lifesciences Inc (GLSI)'s earnings per share (EPS) for the last quarter?

Greenwich Lifesciences Inc. EPS for the last quarter amounts to -0.30 USD, increased 50.00

How many employees does Greenwich Lifesciences Inc (GLSI). have?

Greenwich Lifesciences Inc (GLSI) has 4 emplpoyees as of April 22 2026.

What is Greenwich Lifesciences Inc (GLSI) market cap?

Today GLSI has the market capitalization of 317.41M USD.