Gossamer Bio (GOSS) Insider Trading & Ownership $3.46 0.00 (0.00%) Closing price 09/12/2025 04:00 PM EasternExtended Trading$3.48 +0.02 (+0.46%) As of 09/12/2025 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 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)3Amount OfInsider Buying(Last 3 Years)$1.16MNumber 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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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 (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 DNLI Insider Trading IBRX Insider Trading AGIO Insider Trading IDYA Insider Trading OCUL Insider Trading HRMY Insider Trading IRON Insider Trading CGON Insider Trading RXRX Insider Trading ANIP 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 Insiders Sell These High-Quality Stocks: Why Investors Shouldn’tCoreWeave and Madrigal's Insider Trades Flash Bullish SignalsPalantir Insider Selling: Risk Signal or Normal Activity?Loop Industries Insiders Buy Stock, Signal Confidence in OutlookDueling Insider Moves: Heavy Buying Here, Big Selling There This page (NASDAQ:GOSS) was last updated on 9/14/2025 by MarketBeat.com Staff From Our PartnersCollege grad makes $64,000 a monthA Wall Street legend just helped train our own proprietary AI system in the stock market (a project that took ...Stansberry Research | SponsoredCrypto Gets Official Government Backing—Here's the WinnerTrump Just Signed the GENIUS Act—One Coin is About to Explode We're at the BEGINNING of smart money really ...Crypto 101 Media | SponsoredElon’s Secret Social Security BombshellTo All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...Banyan Hill Publishing | SponsoredTrump’s right about Epstein.A crisis that could devastate your wealth, upend the dollar, and accelerate the collapse of America’s economy....Porter & Company | SponsoredForget NVDA. 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