NASDAQ:GOSS Gossamer Bio (GOSS) Stock Price, News & Analysis $2.57 +0.09 (+3.63%) Closing price 10/3/2025 04:00 PM EasternExtended Trading$2.61 +0.04 (+1.56%) As of 09:05 AM 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 TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock About Gossamer Bio Stock (NASDAQ:GOSS) 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 Gossamer Bio alerts:Sign Up Key Stats Today's Range$2.51▼$2.6450-Day Range$1.73▼$3.4652-Week Range$0.66▼$3.60Volume2.79 million shsAverage Volume4.69 million shsMarket Capitalization$584.37 millionP/E RatioN/ADividend YieldN/APrice Target$8.50Consensus RatingModerate Buy Company Overview Gossamer Bio, Inc. is a clinical-stage biopharmaceutical company headquartered in San Diego, California. Founded in 2012, the company is focused on discovering and developing oral, once-daily therapies for immune-mediated and inflammatory diseases, as well as oncology indications. Gossamer Bio leverages a deep pipeline of small-molecule candidates aimed at improving patient outcomes in areas of high unmet need. The company’s lead programs include GB004, an S1P1 receptor modulator in late-stage development for ulcerative colitis, and GB1275, a CD11b modulator being investigated in solid tumors and hematologic malignancies. In addition to these clinical-stage assets, Gossamer Bio maintains several earlier-stage programs targeting pathways such as integrin and TGF-β signaling. The company’s R&D efforts are supported by a combination of in-house research capabilities and external collaborations with academic centers and contract research organizations. Gossamer Bio completed its initial public offering in July 2019 and has since advanced multiple clinical trials across North America and selected international sites. The company is led by President and Chief Executive Officer Thomas A. Whiting, a veteran of the biopharmaceutical industry with over 25 years of drug development experience. Under his leadership, Gossamer Bio continues to build a multidisciplinary management team focused on accelerating the translation of scientific insights into therapeutic candidates.AI Generated. May Contain Errors. Read More Gossamer Bio Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks80th Percentile Overall ScoreGOSS MarketRank™: Gossamer Bio scored higher than 80% of companies evaluated by MarketBeat, and ranked 202nd out of 944 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion4.1 / 5Analyst RatingModerate Buy Consensus RatingGossamer Bio has received a consensus rating of Moderate Buy. The company's average rating score is 2.67, and is based on 5 buy ratings, no hold ratings, and 1 sell rating.Upside PotentialGossamer Bio has a consensus price target of $8.50, representing about 230.7% upside from its current price of $2.57.Amount of Analyst CoverageGossamer Bio has only been the subject of 4 research reports in the past 90 days.Read more about Gossamer Bio's stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthDecreasing Earnings GrowthEarnings for Gossamer Bio are expected to decrease in the coming year, from ($0.28) to ($0.70) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Gossamer Bio is -4.15, 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 Gossamer Bio is -4.15, 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 RatioGossamer Bio has a P/B Ratio of 19.77. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.Read more about Gossamer Bio's valuation and earnings. Short Interest1.0 / 5Short Interest LevelBearish Percentage of Shares Shorted10.55% of the outstanding shares of Gossamer Bio have been sold short.Short Interest Ratio / Days to CoverGossamer Bio has a short interest ratio ("days to cover") of 6.5.Change versus previous monthShort interest in Gossamer Bio has recently increased by 8.80%, indicating that investor sentiment is decreasing significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldGossamer Bio does not currently pay a dividend.Dividend GrowthGossamer Bio does not have a long track record of dividend growth. Sustainability and ESG4.7 / 5Environmental Score-0.67 Percentage of Shares Shorted10.55% of the outstanding shares of Gossamer Bio have been sold short.Short Interest Ratio / Days to CoverGossamer Bio has a short interest ratio ("days to cover") of 6.5.Change versus previous monthShort interest in Gossamer Bio has recently increased by 8.80%, indicating that investor sentiment is decreasing significantly. News and Social Media3.2 / 5News Sentiment0.70 News SentimentGossamer Bio has a news sentiment score of 0.70. 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 higher news sentiment than the 0.54 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 3 news articles for Gossamer Bio this week, compared to 3 articles on an average week.Search Interest57 people have searched for GOSS on MarketBeat in the last 30 days. This is an increase of 111% compared to the previous 30 days.MarketBeat Follows6 people have added Gossamer Bio to their MarketBeat watchlist in the last 30 days. This is an increase of 50% compared to the previous 30 days. Company Ownership1.7 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Gossamer Bio insiders have not sold or bought any company stock.Percentage Held by InsidersOnly 6.70% of the stock of Gossamer Bio is held by insiders.Percentage Held by Institutions81.23% of the stock of Gossamer Bio is held by institutions. High institutional ownership can be a signal of strong market trust in this company.Read more about Gossamer Bio's insider trading history. Receive GOSS Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Gossamer Bio and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. 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But Stansberry Senior Partner Dr. David "Doc" Eifrig says history shows it could be on the verge of its biggest bull run in over half a century.October 6 at 2:00 AM | Stansberry Research (Ad)Gossamer Bio Enters into Option Agreement to Acquire Respira Therapeutics and Its Lead Candidate, RT234, an Inhaled, On‑Demand Vardenafil for Pulmonary HypertensionSeptember 25, 2025 | businesswire.comGossamer Bio, Inc. (GOSS) Stock Jumps 18% on FDA Updates and Seralutinib ProgressSeptember 23, 2025 | insidermonkey.comGossamer Bio Announces Presentations at the European Respiratory Society (ERS) Congress 2025September 22, 2025 | businesswire.comGossamer Bio (GOSS): Assessing Valuation After Encouraging Phase 2 Data and Analyst OptimismSeptember 15, 2025 | finance.yahoo.comGossamer Bio (GOSS) Is Up 17.7% After Seralutinib Gains Key FDA Support and Clinical ProgressSeptember 13, 2025 | finance.yahoo.comSee More Headlines GOSS Stock Analysis - Frequently Asked Questions How have GOSS shares performed this year? Gossamer Bio's stock was trading at $0.9046 on January 1st, 2025. Since then, GOSS stock has increased by 184.1% and is now trading at $2.57. How were Gossamer Bio's earnings last quarter? Gossamer Bio, Inc. (NASDAQ:GOSS) issued its quarterly earnings results on Tuesday, August, 5th. The company reported ($0.17) EPS for the quarter, beating analysts' consensus estimates of ($0.18) by $0.01. The company had revenue of $11.49 million for the quarter, compared to analyst estimates of $4.12 million. Gossamer Bio had a negative trailing twelve-month return on equity of 1,774.72% and a negative net margin of 344.81%. When did Gossamer Bio IPO? Gossamer Bio (GOSS) raised $230 million in an IPO on Friday, February 8th 2019. The company issued 14,400,000 shares at $16.00 per share. BofA Merrill Lynch, Leerink Partners, Barclays and Evercore ISI served as the underwriters for the IPO. How do I buy shares of Gossamer Bio? Shares of GOSS 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 Gossamer Bio own? Based on aggregate information from My MarketBeat watchlists, some other companies that Gossamer Bio investors own include Voyager Therapeutics (VYGR), Waste Connections (WCN), American Water Works (AWK), DiamondRock Hospitality (DRH), The RMR Group (RMR), AU Optronics (AUOTY) and iShares Micro-Cap ETF (IWC). Company Calendar Last Earnings8/05/2025Today10/06/2025Next Earnings (Estimated)11/06/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:GOSS CIK1728117 Webwww.gossamerbio.com Phone(858) 684-1300FaxN/AEmployees180Year Founded2015Price Target and Rating Average Price Target for Gossamer Bio$8.50 High Price Target$11.00 Low Price Target$5.00 Potential Upside/Downside+230.7%Consensus RatingModerate Buy Rating Score (0-4)2.67 Research Coverage6 Analysts Profitability EPS (Trailing Twelve Months)($0.62) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$56.53 million Net Margins-344.81% Pretax Margin-353.62% Return on Equity-1,774.72% Return on Assets-46.73% Debt Debt-to-Equity RatioN/A Current Ratio4.40 Quick Ratio4.40 Sales & Book Value Annual Sales$114.70 million Price / Sales5.09 Cash FlowN/A Price / Cash FlowN/A Book Value$0.13 per share Price / Book19.77Miscellaneous Outstanding Shares227,380,000Free Float212,146,000Market Cap$584.37 million OptionableOptionable Beta1.94 Social Links (Almost) Everything You Need To Know About The EV MarketLooking to profit from the electric vehicle mega-trend? 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