NASDAQ:GTBP GT Biopharma (GTBP) Stock Price, News & Analysis $0.39 -0.05 (-10.25%) Closing price 05/15/2026 04:00 PM EasternExtended Trading$0.39 0.00 (-0.48%) As of 05/15/2026 07:56 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 Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock About GT Biopharma Stock (NASDAQ:GTBP) 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 GT Biopharma alerts:Sign Up Key Stats Today's Range$0.38▼$0.4650-Day Range$0.27▼$0.4852-Week Range$0.26▼$3.85Volume4.00 million shsAverage Volume1.64 million shsMarket Capitalization$14.03 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingSell Company Overview GT Biopharma, Inc. is a clinical-stage biopharmaceutical company dedicated to developing novel immuno-oncology therapies utilizing its proprietary Tri-specific NK cell engager (TriKE) platform. This technology is designed to harness and enhance the body’s natural killer (NK) cells by simultaneously binding tumor antigens and interleukin-15 (IL-15), stimulating NK cell proliferation and targeted cytotoxicity. By focusing on NK cell engagement rather than T-cell activation, the company aims to offer therapies with potentially improved safety profiles and reduced immune-related adverse events. The company’s lead candidate, GTB-3550, is currently in clinical trials for hematologic malignancies such as acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL) and myelodysplastic syndromes (MDS). Beyond GTB-3550, GT Biopharma is advancing a pipeline of preclinical TriKE constructs aimed at both hematologic and solid tumors, as well as exploring applications in infectious diseases. The modular nature of the TriKE platform enables rapid development of new molecules targeting diverse antigens, supporting strategic combination therapies and expansion into multiple oncology indications. Founded in 2015 with technology originally licensed from the National Institutes of Health, GT Biopharma is headquartered in Tempe, Arizona, and conducts research and development operations in the United States. The company collaborates with leading academic institutions and global clinical sites to advance its pipeline. Under the leadership of President and CEO Scott K. Koenig, GT Biopharma continues to pursue its mission of delivering next-generation cell-engaging therapies to improve outcomes for patients with cancer and beyond.AI Generated. May Contain Errors. Read More GT Biopharma Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks22nd Percentile Overall ScoreGTBP MarketRank™: GT Biopharma scored higher than 22% of companies evaluated by MarketBeat, and ranked 785th out of 864 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion0.7 / 5Analyst RatingSell Consensus RatingGT Biopharma has received a consensus rating of Sell. The company's average rating score is 1.00, and is based on no strong buy ratings, no buy ratings, no hold ratings, and 1 sell rating.Amount of Analyst CoverageGT Biopharma has only been the subject of 1 research reports in the past 90 days.Read more about GT Biopharma's stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for GT Biopharma are expected to grow in the coming year, from ($0.32) to ($0.26) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of GT Biopharma is -0.06, 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 GT Biopharma is -0.06, 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 RatioGT Biopharma has a P/B Ratio of 1.71. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities. Short Interest5.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted1.76% of the float of GT Biopharma has been sold short.Short Interest Ratio / Days to CoverGT Biopharma has a short interest ratio ("days to cover") of 0.88, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in GT Biopharma has recently decreased by 9.91%, indicating that investor sentiment is improving significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldGT Biopharma does not currently pay a dividend.Dividend GrowthGT Biopharma does not have a long track record of dividend growth. News and Social Media3.2 / 5News Sentiment0.14 News SentimentGT Biopharma has a news sentiment score of 0.14. 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 is a lower news sentiment than the 0.60 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 10 news articles for GT Biopharma this week, compared to 1 article on an average week.Search Interest6 people have searched for GTBP on MarketBeat in the last 30 days. This is an increase of 500% compared to the previous 30 days.MarketBeat Follows5 people have added GT Biopharma to their MarketBeat watchlist in the last 30 days. This is an increase of 400% compared to the previous 30 days. Company Ownership0.2 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, GT Biopharma insiders have not sold or bought any company stock.Percentage Held by Insiders3.40% of the stock of GT Biopharma is held by insiders.Percentage Held by Institutions8.15% of the stock of GT Biopharma is held by institutions.Read more about GT Biopharma's insider trading history. 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Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. GTBP Stock News HeadlinesGT Biopharma Reports First Quarter 2026 Financial ResultsMay 15 at 8:00 AM | globenewswire.comA Cancer Antigen Long Thought Untouchable Is Suddenly the Hottest Target in OncologyMay 14 at 5:54 PM | markets.businessinsider.comI was right about SpaceXJeff Brown predicted Bitcoin before it climbed as high as 52,400%, Tesla before 2,150%, and Nvidia before 32,000%. Now he says SpaceX is shaping up to be the biggest IPO of the decade - and three key milestones just confirmed it. In the past 21 days: SpaceX crossed 10,000 active satellites, Elon filed confidential IPO paperwork with the SEC, and another rocket launched 25 more satellites. Two-thirds of every satellite in orbit now belongs to one company. The public filing could drop any day.May 17 at 1:00 AM | Brownstone Research (Ad)"Cold" Solid Tumors Become the Proving Ground for a New Generation of Engager and Immune-Priming TherapiesMay 14 at 12:53 PM | markets.businessinsider.comFirst Patient Dosed in Phase 1 Trial Marks Expansion of NK Cell Engager Platform Into Solid TumorsMay 14 at 12:53 PM | baystreet.ca‘Cold’ Solid Tumors Become the Proving Ground for a New Generation of Engager and Immune-Priming TherapiesMay 14 at 11:11 AM | financialpost.comFGT Biopharma Announces First Patient Dosed in Phase 1 Trial of GTB-5550, a B7-H3-Targeted Natural Killer (NK) Cell Engager for Solid TumorsMay 14 at 8:30 AM | globenewswire.comEXCLUSIVE: GT Biopharma Begins Testing Of Lead Solid Tumor Drug Candidate Across Multiple Cancer TypesMay 14 at 8:16 AM | benzinga.comSee More Headlines GTBP Stock Analysis - Frequently Asked Questions How have GTBP shares performed this year? GT Biopharma's stock was trading at $0.7852 on January 1st, 2026. Since then, GTBP stock has decreased by 49.8% and is now trading at $0.3939. How were GT Biopharma's earnings last quarter? GT Biopharma, Inc. (NASDAQ:GTBP) posted its quarterly earnings data on Friday, May, 15th. The company reported ($0.11) earnings per share (EPS) for the quarter, missing the consensus estimate of ($0.08) by $0.03. When did GT Biopharma's stock split? Shares of GT Biopharma reverse split before market open on Monday, February 5th 2024.The 1-30 reverse split was announced on Monday, February 5th 2024. The number of shares owned by shareholders was adjusted after the market closes on Monday, February 5th 2024. An investor that had 100 shares of stock prior to the reverse split would have 3 shares after the split. How do I buy shares of GT Biopharma? Shares of GTBP 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 GT Biopharma own? Based on aggregate information from My MarketBeat watchlists, some other companies that GT Biopharma investors own include NVIDIA (NVDA), Advanced Micro Devices (AMD), Adobe (ADBE), Broadcom (AVGO), Meta Platforms (META), CrowdStrike (CRWD) and Intel (INTC). Company Calendar Last Earnings5/15/2026Today5/17/2026Fiscal 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. Yellow Zone (3m+) 1-Year History May 25 Aug 25 Nov 25 Feb 26 May 26 GTBP's financial health is in the Yellow zone, according to TradeSmith. GTBP has been in this zone for over 3 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:GTBP Previous SymbolOTCMKTS:OXISD CIK109657 Webwww.gtbiopharma.com Phone(415) 919-4040FaxN/AEmployees8Year Founded1965Profitability EPS (Trailing Twelve Months)($6.33) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$28.35 million Net MarginsN/A Pretax MarginN/A Return on EquityN/A Return on Assets-115.65% Debt Debt-to-Equity RatioN/A Current Ratio3.50 Quick Ratio3.50 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash Flow$0.01 per share Price / Cash Flow26.33 Book Value$0.23 per share Price / Book1.71Miscellaneous Outstanding Shares35,620,000Free Float34,411,000Market Cap$14.03 million OptionableNo Data Beta0.64 Social Links 5G Stocks: The Path Forward is ProfitableClick the link to see MarketBeat's guide to investing in 5G and which 5G stocks show the most promise. Get This Free Report This page (NASDAQ:GTBP) was last updated on 5/17/2026 by MarketBeat.com Staff. From Our PartnersI was right about SpaceXJeff Brown predicted Bitcoin before it climbed as high as 52,400%, Tesla before 2,150%, and Nvidia before 32,0...Brownstone Research | Sponsored$30 stock to buy before Starlink goes public (WATCH NOW!)In the next 3 minutes… James Altucher – legendary investor and venture capitalist… And someone who’s kno...Paradigm Press | SponsoredMy feud with Zohran MamdaniEmmy-winning analyst releases his next big story Whitney Tilson shocked the nation on 60 Minutes when he ac...Stansberry Research | SponsoredIran War Shock: What I Was Told In That Private MeetingYou’re Being LIED To About The Iran War Forget EVERYTHING you’ve heard about the Iran war. 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