NASDAQ:GLSI Greenwich LifeSciences (GLSI) Stock Price, News & Analysis $28.50 -0.73 (-2.48%) As of 01:05 PM Eastern This is a fair market value price provided by Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock About Greenwich LifeSciences Stock (NASDAQ:GLSI) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Greenwich LifeSciences alerts:Sign Up Key Stats Today's Range$27.51▼$28.9650-Day Range$21.49▼$30.0552-Week Range$7.78▼$34.10Volume62,889 shsAverage Volume274,503 shsMarket Capitalization$394.78 millionP/E RatioN/ADividend YieldN/APrice Target$47.50Consensus RatingHold Company Overview Greenwich LifeSciences, Inc. (NASDAQ: GLSI) is a clinical-stage biotechnology company focused on the development of novel immune modulators for the treatment of cancer and autoimmune diseases. The company’s product pipeline includes candidates engineered to activate or regulate key components of the innate and adaptive immune systems, with programs advancing through preclinical and early-stage clinical studies. Headquartered in Greenwich, Connecticut, Greenwich LifeSciences conducts its research and development activities primarily in the United States. The company leverages proprietary technologies to identify immune-modulating compounds and works with contract research organizations to support its preclinical and clinical programs. Greenwich LifeSciences pursues strategic collaborations and licensing arrangements to expand its scientific expertise and accelerate the progress of its therapeutic candidates. With a focus on unmet medical needs in oncology and inflammatory disorders, the company aims to bring first-in-class or best-in-class treatments to patients through disciplined clinical development and regulatory strategies.AI Generated. May Contain Errors. Read More Greenwich LifeSciences Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks28th Percentile Overall ScoreGLSI MarketRank™: Greenwich LifeSciences scored higher than 28% of companies evaluated by MarketBeat, and ranked 764th out of 869 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.4 / 5Analyst RatingHold Consensus RatingGreenwich LifeSciences has received a consensus rating of Hold. The company's average rating score is 2.33, and is based on no strong buy ratings, 2 buy ratings, no hold ratings, and 1 sell rating.Upside PotentialGreenwich LifeSciences has a consensus price target of $47.50, representing about 71.0% upside from its current price of $27.78.Amount of Analyst CoverageGreenwich LifeSciences has only been the subject of 1 research reports in the past 90 days.Read more about Greenwich LifeSciences' stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthN/A Price to Earnings Ratio vs. the MarketThe P/E ratio of Greenwich LifeSciences is -19.06, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of Greenwich LifeSciences is -19.06, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioGreenwich LifeSciences has a P/B Ratio of 146.22. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities. Short Interest1.0 / 5Short Interest LevelBearish Percentage of Shares Shorted22.93% of the float of Greenwich LifeSciences has been sold short.Short Interest Ratio / Days to CoverGreenwich LifeSciences has a short interest ratio ("days to cover") of 11.02, which indicates bearish sentiment.Change versus previous monthShort interest in Greenwich LifeSciences has recently decreased by 0.17%, indicating that investor sentiment is improving. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldGreenwich LifeSciences does not currently pay a dividend.Dividend GrowthGreenwich LifeSciences does not have a long track record of dividend growth. News and Social Media0.6 / 5News Sentiment0.00 News Coverage This WeekMarketBeat has tracked 3 news articles for Greenwich LifeSciences this week, compared to 4 articles on an average week.Search InterestOnly 5 people have searched for GLSI on MarketBeat in the last 30 days. This is a decrease of 0% compared to the previous 30 days.MarketBeat Follows3 people have added Greenwich LifeSciences to their MarketBeat watchlist in the last 30 days. This is an increase of 50% compared to the previous 30 days. Company Ownership0.8 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Greenwich LifeSciences insiders have not sold or bought any company stock.Percentage Held by Insiders51.47% of the stock of Greenwich LifeSciences is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by Institutions4.16% of the stock of Greenwich LifeSciences is held by institutions.Read more about Greenwich LifeSciences' insider trading history. Receive GLSI Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Greenwich LifeSciences and its competitors with MarketBeat's FREE daily newsletter. 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GLSI Stock News HeadlinesGreenwich LifeSciences, Inc.: Greenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-Q FilingMay 23, 2026 | finanznachrichten.deGreenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-Q FilingMay 22, 2026 | globenewswire.comYou cannot escape this realityThe last time something like this happened was 1974 - a secret deal that quietly determined the financial fate of an entire generation. According to Porter Stansberry, founder of one of the largest independent financial research firms in the world, it is happening again. Fortune calls it 'the biggest change to the world's relationship with the dollar' in a generation. Stansberry says Trump's money reset - enacted through executive orders and a treaty signed by 13 nations in December 2025 called Pax Silica - could determine whether you are enriched or quietly impoverished by the shift already underway.May 28 at 1:00 AM | Porter & Company (Ad)Greenwich LifeSciences Provides Update Regarding Form 10-K FilingApril 30, 2026 | globenewswire.comAnalysts’ Opinions Are Mixed on These Healthcare Stocks: Hims & Hers Health (HIMS), Greenwich LifeSciences (GLSI) and Harmony Biosciences Holdings (HRMY)April 23, 2026 | theglobeandmail.comGreenwich LifeSciences Announces Acceptance of Abstract at ASCO 2026April 23, 2026 | globenewswire.comGreenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-K FilingApril 22, 2026 | globenewswire.comGreenwich LifeSciences shares rise on breast cancer vaccine trial dataApril 20, 2026 | au.investing.comSee More Headlines GLSI Stock Analysis - Frequently Asked Questions How have GLSI shares performed this year? Greenwich LifeSciences' stock was trading at $21.01 at the beginning of the year. Since then, GLSI stock has increased by 32.2% and is now trading at $27.7810. How were Greenwich LifeSciences' earnings last quarter? Greenwich LifeSciences, Inc. (NASDAQ:GLSI) announced its quarterly earnings results on Friday, November, 14th. The company reported ($0.30) earnings per share for the quarter, meeting analysts' consensus estimates of ($0.30). When did Greenwich LifeSciences IPO? Greenwich LifeSciences (GLSI) raised $8 million in an IPO on Friday, September 25th 2020. The company issued 1,260,870 shares at $5.75-$6.75 per share. Aegis Capital served as the underwriter for the IPO. Who are Greenwich LifeSciences' major shareholders? Top institutional investors of Greenwich LifeSciences include Bank of New York Mellon Corp (0.34%), Sei Investments Co. (0.19%) and Strs Ohio (0.10%). Insiders that own company stock include Snehal Patel and Jaye Thompson. View institutional ownership trends. How do I buy shares of Greenwich LifeSciences? Shares of GLSI stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of Greenwich LifeSciences own? Based on aggregate information from My MarketBeat watchlists, some other companies that Greenwich LifeSciences investors own include Zomedica (ZOM), Jumia Technologies (JMIA), Tesla (TSLA), Advanced Micro Devices (AMD), Netflix (NFLX), Meta Platforms (META) and NVIDIA (NVDA). Company Calendar Last Earnings11/14/2025Today5/28/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Green Zone (2w+) 1-Year History May 25 Aug 25 Nov 25 Feb 26 May 26 For the last 2 weeks, GLSI's financial health has been in the Green zone, according to TradeSmith. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:GLSI CIK1799788 Webwww.greenwichlifesciences.com Phone832-819-3232FaxN/AEmployees3Year Founded2006Price Target and Rating Average Price Target for Greenwich LifeSciences$47.50 High Price Target$50.00 Low Price Target$45.00 Potential Upside/Downside+69.4%Consensus RatingHold Rating Score (0-4)2.33 Research Coverage3 Analysts Profitability EPS (Trailing Twelve Months)($1.46) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$15.79 million Net MarginsN/A Pretax MarginN/A Return on Equity-1,042.84% Return on Assets-565.43% Debt Debt-to-Equity RatioN/A Current Ratio2.35 Quick Ratio2.35 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$0.19 per share Price / Book147.56Miscellaneous Outstanding Shares13,850,000Free Float6,724,000Market Cap$388.30 million OptionableNot Optionable Beta1.39 Social Links 7 Stocks That Will Be Magnificent in 2026Discover the next wave of investment opportunities with our report, 7 Stocks That Will Be Magnificent in 2026. 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