Gossamer Bio (GOSS) Insider Trading & Ownership $1.45 -0.08 (-5.23%) Closing price 04:00 PM EasternExtended Trading$1.44 -0.01 (-0.76%) As of 05:17 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 Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Gossamer Bio (NASDAQ:GOSS) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage6.70%Number OfInsiders Buying(Last 3 Years)4Amount OfInsider Buying(Last 3 Years)$2.31MNumber OfInsiders Selling(Last 3 Years)5Amount OfInsider Selling(Last 3 Years)$174.50K Get GOSS Insider Trade Alerts Want to know when executives and insiders are buying or selling Gossamer Bio stock? 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Email Address GOSS Insider Buying and Selling by Quarter Gossamer Bio Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails6/24/2024Richard ArandaInsiderSell1,908$0.66$1,259.28 6/21/2024Faheem HasnainCEOBuy372,000$0.67$249,240.00 3/27/2024Bryan GiraudoCFOSell6,430$1.16$7,458.80 3/27/2024Faheem HasnainCEOSell23,172$1.16$26,879.52 3/18/2024Richard ArandaInsiderSell4,018$1.33$5,343.94 11/13/2023Bryan GiraudoCFOBuy200,000$0.56$112,000.00 6/22/2023Richard ArandaInsiderSell1,814$1.29$2,340.06 4/4/2023Bryan GiraudoCFOBuy55,000$1.02$56,100.00 3/22/2023Faheem HasnainCEOBuy440,500$1.14$502,170.00 3/20/2023Bryan GiraudoCFOBuy50,000$0.97$48,500.00 Get Insider Trades Delivered To Your InboxEnter your email address below to receive a concise daily summary of insider buying activity, insider selling activity and changes in hedge fund holdings. 3/20/2023Faheem HasnainCEOBuy168,683$1.03$173,743.49 3/20/2023Waage ChristianEVPBuy18,500$1.20$22,200.00 3/16/2023Caryn PetersonEVPSell7,564$1.10$8,320.40 3/16/2023Laura CarterInsiderSell6,029$1.10$6,631.90 10/24/2022Caryn PetersonEVPSell4,757$12.07$57,416.99 10/24/2022Laura CarterInsiderSell4,876$12.07$58,853.32 7/15/2022Bryan GiraudoCFOBuy13,869$7.21$99,995.49 7/15/2022Faheem HasnainCEOBuy138,696$7.21$999,998.16 7/15/2022Laura CarterInsiderBuy6,934$7.21$49,994.14 (Data available from 1/1/2013 forward) GOSS Insider Trading Activity - Frequently Asked Questions Who is on Gossamer Bio's Insider Roster? The list of insiders at Gossamer Bio includes Bryan Giraudo, Caryn Peterson, Faheem Hasnain, Laura Carter, Richard Aranda, and Waage Christian. Learn more on insiders at GOSS. What percentage of Gossamer Bio stock is owned by insiders? 6.70% of Gossamer Bio stock is owned by insiders. Learn more on GOSS's insider holdings. Which Gossamer Bio insiders have been buying company stock? The following insiders have purchased GOSS shares in the last 24 months: Bryan Giraudo ($112,000.00), and Faheem Hasnain ($249,240.00). How much insider buying is happening at Gossamer Bio? Insiders have purchased a total of 572,000 GOSS shares in the last 24 months for a total of $361,240.00 bought. Which Gossamer Bio insiders have been selling company stock? The following insiders have sold GOSS shares in the last 24 months: Bryan Giraudo ($7,458.80), Faheem Hasnain ($26,879.52), and Richard Aranda ($6,603.22). How much insider selling is happening at Gossamer Bio? Insiders have sold a total of 35,528 Gossamer Bio shares in the last 24 months for a total of $40,941.54 sold. Gossamer Bio Key ExecutivesMr. Faheem Hasnain (Age 66)Co-Founder, CEO, President & Chairman Compensation: $910.26kMr. Bryan Giraudo (Age 49)COO & CFO Compensation: $708.09kMr. Robert P. Smith (Age 55)Chief Commercial Officer Compensation: $135.79kMr. Christian Waage (Age 57)Executive Vice President of Technical Operations & Administration Compensation: $583.16kMr. Jeff BoernekeGeneral Counsel & SecretaryMs. Deanna WeberSenior Vice President of Human ResourcesDr. Richard Aranda M.D. (Age 63)Chief Medical Officer Compensation: $625.24kMr. Mario OrlandoSenior Vice President of Commercial New Product PlanningMs. Caryn L. Peterson (Age 65)Executive Vice President of Regulatory Affairs Mr. Matt CravetsSenior Vice President of Biometrics More Insider Trading Tools from MarketBeat Related Companies WVE Insider Trading AMPH Insider Trading GPCR Insider Trading COGT Insider Trading NTLA Insider Trading ARDX Insider Trading AUPH Insider Trading VERV Insider Trading COLL Insider Trading CDTX Insider Trading Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles Insider Selling Hits Market Leaders—Should You Be Worried?3 Small Caps Drawing Insider and Institutional SupportDo They Know Something? Insiders & Congress Buy UnitedHealthMicron Insiders Sell But Investors Should Buy, Buy, BuySizzling Insider Buys for Your High-Yield Watchlist This page (NASDAQ:GOSS) was last updated on 7/15/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | 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 | SponsoredThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. 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