NASDAQ:GLSI Greenwich LifeSciences (GLSI) Stock Price, News & Analysis $12.08 +0.30 (+2.55%) Closing price 04:00 PM EasternExtended Trading$12.12 +0.04 (+0.29%) As of 05:03 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock About Greenwich LifeSciences Stock (NASDAQ:GLSI) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get Greenwich LifeSciences alerts:Sign Up Key Stats Today's Range$11.70▼$12.7050-Day Range$8.76▼$12.4952-Week Range$8.06▼$16.50Volume99,641 shsAverage Volume58,907 shsMarket Capitalization$161.51 millionP/E RatioN/ADividend YieldN/APrice Target$39.00Consensus RatingBuy Company Overview Greenwich LifeSciences, Inc., a clinical-stage biopharmaceutical company, develops novel cancer immunotherapies for breast cancer and other HER2/neu-expressing cancers. Its lead product candidate is GP2, an immunotherapy, which is in Phase III clinical trial to prevent breast cancer recurrences in patients who have previously undergone surgery. The company was formerly known as Norwell, Inc. and changed its name to Greenwich LifeSciences, Inc. in March 2018. Greenwich LifeSciences, Inc. was incorporated in 2006 and is headquartered in Stafford, Texas. Read More Greenwich LifeSciences Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks29th Percentile Overall ScoreGLSI MarketRank™: Greenwich LifeSciences scored higher than 29% of companies evaluated by MarketBeat, and ranked 786th out of 936 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.5 / 5Analyst RatingBuy Consensus RatingGreenwich LifeSciences has received a consensus rating of Buy. The company's average rating score is 3.00, and is based on 1 buy rating, no hold ratings, and no sell ratings.Amount of Analyst CoverageGreenwich LifeSciences has received no research coverage in the past 90 days.Read more about Greenwich LifeSciences' stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthDecreasing Earnings GrowthEarnings for Greenwich LifeSciences are expected to decrease in the coming year, from ($0.80) to ($0.81) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Greenwich LifeSciences is -9.49, 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 -9.49, 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 62.95. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities. Short Interest0.0 / 5Short Interest LevelBearish Percentage of Shares Shorted17.36% 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 20, which indicates bearish sentiment.Change versus previous monthShort interest in Greenwich LifeSciences has recently increased by 4.00%, indicating that investor sentiment is decreasing. 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. Sustainability and ESGN/AEnvironmental ScoreN/A Percentage of Shares Shorted17.36% 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 20, which indicates bearish sentiment.Change versus previous monthShort interest in Greenwich LifeSciences has recently increased by 4.00%, indicating that investor sentiment is decreasing. News and Social Media2.0 / 5News Sentiment0.63 News SentimentGreenwich LifeSciences has a news sentiment score of 0.63. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This news sentiment score is similar to the average news sentiment of Medical companies.News Coverage This WeekMarketBeat has tracked 5 news articles for Greenwich LifeSciences this week, compared to 1 article on an average week.Search InterestOnly 2 people have searched for GLSI on MarketBeat in the last 30 days. This is a decrease of 0% compared to the previous 30 days. Company Ownership1.7 / 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 Insiders51.67% 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 InstitutionsOnly 4.16% 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. Email Address GLSI Stock News HeadlinesGreenwich LifeSciences Announces Expansion of Flamingo-01 into RomaniaAugust 13 at 6:00 AM | globenewswire.comGreenwich LifeSciences, Inc. Provides Update on CEO Interviews and Corporate Events Related to GLSI-100 DevelopmentAugust 11 at 6:19 AM | quiverquant.comQMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tariffs just lit the fuse. Millions of investors are blindsided as stocks plunge… but this is only Phase 1. If you're still holding the wrong assets, you could lose 30% or more in the coming weeks.August 14 at 2:00 AM | American Alternative (Ad)Greenwich LifeSciences Provides Update on CEO Interviews & Corporate EventsAugust 11 at 6:00 AM | globenewswire.comGreenwich LifeSciences: What The Recent Data Do For The Investment ThesisMay 9, 2025 | seekingalpha.comGreenwich LifeSciences price target raised to $39 from $38 at H.C. WainwrightApril 22, 2025 | markets.businessinsider.comGreenwich LifeSciences Provides Global Update on FLAMINGO-01April 3, 2025 | globenewswire.comGreenwich LifeSciences announces ‘positive’ data from FLAMINGO-01 trialApril 3, 2025 | markets.businessinsider.comSee More Headlines GLSI Stock Analysis - Frequently Asked Questions How have GLSI shares performed this year? Greenwich LifeSciences' stock was trading at $11.23 on January 1st, 2025. Since then, GLSI stock has increased by 6.5% and is now trading at $11.96. How were Greenwich LifeSciences' earnings last quarter? Greenwich LifeSciences, Inc. (NASDAQ:GLSI) released its quarterly earnings results on Tuesday, May, 20th. The company reported ($0.25) earnings per share for the quarter, missing the consensus estimate of ($0.24) by $0.01. When did Greenwich LifeSciences IPO? Greenwich LifeSciences (GLSI) raised $7 million in an initial public offering (IPO) on Friday, September 25th 2020. The company issued 1,300,000 shares at a price of $5.75 per share. Aegis Capital served as the underwriter for the IPO. Who are Greenwich LifeSciences' major shareholders? Greenwich LifeSciences' top institutional shareholders include Geode Capital Management LLC (1.04%), Marshall Wace LLP (0.42%) and Police & Firemen s Retirement System of New Jersey (0.02%). 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 Earnings5/20/2025Today8/14/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:GLSI CIK1799788 Webwww.greenwichlifesciences.com Phone832-819-3232FaxN/AEmployees3Year FoundedN/APrice Target and Rating Average Price Target for Greenwich LifeSciences$39.00 High Price Target$39.00 Low Price Target$39.00 Potential Upside/Downside+222.8%Consensus RatingBuy Rating Score (0-4)3.00 Research Coverage1 Analysts Profitability EPS (Trailing Twelve Months)($1.26) 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-450.87% Return on Assets-333.18% Debt Debt-to-Equity RatioN/A Current Ratio1.91 Quick Ratio1.91 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$0.19 per share Price / Book63.58Miscellaneous Outstanding Shares13,370,000Free Float6,461,000Market Cap$161.51 million OptionableNot Optionable Beta1.65 Social Links Options Trading Made Easy - Download NowLearn the basics of options trading and how to use them to boost returns and manage risk with this free report from MarketBeat. Click the link below to get your free copy.Get This Free Report This page (NASDAQ:GLSI) was last updated on 8/14/2025 by MarketBeat.com Staff From Our PartnersGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. B...Priority Gold | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredHIDDEN IN THE BOOK OF GENESIS…“This land I will give to you…” — a 4,000-year-old line from Genesis may hold the key to unlocking a $150 tril...Paradigm Press | SponsoredWhen the levee breaksThe U.S. Treasury just confirmed it plans to borrow $1.01 trillion this quarter—nearly double what was project...Porter & Company | SponsoredIs Elon's empire crumbling?The Tesla Shock Nobody Sees Coming While headlines scream "Tesla is doomed"... Jeff Brown has uncovered ...Brownstone Research | SponsoredBut this $20 American company could control the secretThe "Impossible" Chip That Runs on Pure Light Google's quantum computer shocked the world... but China DEMO...The Oxford Club | SponsoredBREAKING: The House just passed 3 pro-crypto bills!THREE pro-crypto bills just passed the House! Now, experts believe altcoin season is officially here. Crypto 101 Media | SponsoredGenerate up to $5,000/month with 10X less money?The secret to retiring without a million-dollar nest egg. I'm talking about generating enough monthly inco...Investors Alley | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Greenwich LifeSciences, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Greenwich LifeSciences With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.