{"success":true,"data":{"pressRelease":{"id":"46875","rtpr_id":"nPn6HKY00a","ticker":"GOSS","exchange":"NASDAQ","all_tickers":["GOSS"],"title":"Gossamer Bio, Inc. (GOSS) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit","author":"PR Newswire","published_at":"2026-05-27T16:00:16.683Z","article_body":"Gossamer Bio, Inc. (GOSS) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit\n\nPR Newswire\n\nLOS ANGELES, May 27, 2026\n\nLOS ANGELES, May 27, 2026 /PRNewswire/ -- Glancy Prongay Wolke & Rotter\nLLP\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=912219791&u=https%3A%2F%2Fwww.glancylaw.com%2F&a=Glancy+Prongay+Wolke+%26+Rotter+LLP)\nannounces that investors with losses have opportunity to lead the securities\nfraud class action lawsuit against Gossamer Bio, Inc. (\"Gossamer\" or the\n\"Company\") (NASDAQ: GOSS\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=461016672&u=https%3A%2F%2Ffinance.yahoo.com%2Fquote%2Fgoss&a=GOSS)\n).\n\n(https://mma.prnewswire.com/media/2877584/Glancy_Logo.html)\n\nIF YOU SUFFERED A LOSS ON YOUR GOSSAMER INVESTMENTS, CLICK HERE\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=1010506877&u=https%3A%2F%2Fwww.glancylaw.com%2Fcases%2FGossamer-Bio-Inc%2F&a=HERE)\n BEFORE JUNE 1, 2026 (LEAD PLAINTIFF DEADLINE) TO PARTICIPATE IN THE\nSECURITIES FRAUD LAWSUIT\n\nWhat Is The Lawsuit About?\nThe complaint filed alleges that, between June 16, 2025 and February 20, 2026,\nDefendants failed to disclose to investors that: (1) patients at the Latin\nAmerican sites were largely heavily-treated and lower risk and, ultimately,\nperformed particularly well on the placebo, thus, Gossamer's Phase 3 PROSERA\nstudy failed to meet the primary endpoint of improved six-minute walk distance\nat week 24; and (2) as a result, Defendants' positive statements about the\nCompany's business, operations, and prospects were materially misleading\nand/or lacked a reasonable basis at all relevant times.\n\nContact Us To Participate or Learn More:\nIf you wish to learn more about this action, or if you have any questions\nconcerning this announcement or your rights or interests with respect to these\nmatters, please contact us.\nCharles Linehan, Esq.,\nGlancy Prongay Wolke & Rotter LLP,\n1925 Century Park East, Suite 2100,\nLos Angeles California 90067\nEmail:  shareholders@glancylaw.com (mailto:shareholders@glancylaw.com)\nTelephone: 310-201-9150 (Toll-Free: 888-773-9224)\nVisit our website at www.glancylaw.com\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=1430345940&u=http%3A%2F%2Fwww.glancylaw.com%2F&a=www.glancylaw.com)\n.\n\nFollow us for updates on LinkedIn\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=2786780899&u=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fglancy-prongay-murray-llp&a=LinkedIn)\n, Twitter\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=3452426166&u=https%3A%2F%2Ftwitter.com%2FGPM_llp&a=Twitter)\n, or Facebook\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=790436831&u=https%3A%2F%2Fwww.facebook.com%2FGlancyLawFirm%2F&a=Facebook)\n.\n\nIf you inquire by email, please include your mailing address, telephone number\nand number of shares purchased.\n\nTo be a member of the class action you need not take any action at this time;\nyou may retain counsel of your choice or take no action and remain an absent\nmember of the class action.\n\nThis press release may be considered Attorney Advertising in some\njurisdictions under the applicable law and ethical rules.\n\nContact Us:\nGlancy Prongay Wolke & Rotter LLP,\n1925 Century Park East, Suite 2100,\nLos Angeles, CA 90067\nCharles Linehan\nEmail:  shareholders@glancylaw.com (mailto:shareholders@glancylaw.com)\nTelephone: 310-201-9150\nToll-Free: 888-773-9224\nVisit our website at: www.glancylaw.com\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=1163282467&u=https%3A%2F%2Fwww.glancylaw.com&a=www.glancylaw.com)\n.\n\nView original content to download\nmultimedia:https://www.prnewswire.com/news-releases/gossamer-bio-inc-goss-shareholders-who-lost-money-have-opportunity-to-lead-securities-fraud-lawsuit-302782955.html\n(https://www.prnewswire.com/news-releases/gossamer-bio-inc-goss-shareholders-who-lost-money-have-opportunity-to-lead-securities-fraud-lawsuit-302782955.html)\n\nSOURCE Glancy Prongay Wolke & Rotter LLP\n\n\n\nPhoto: \nhttps://mma.prnewswire.com/media/2877584/Glancy_Logo.jpg\n\nCopyright (c) 2026 PR Newswire Association,LLC. All Rights Reserved.","article_body_html":"","raw_payload":{"data":{"id":"nPn6HKY00a","title":"Gossamer Bio, Inc. (GOSS) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit","author":"PR Newswire","ticker":"GOSS","created":"2026-05-27T16:00:16.683Z","tickers":["GOSS"],"exchange":"NASDAQ","article_body":"Gossamer Bio, Inc. (GOSS) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud Lawsuit\n\nPR Newswire\n\nLOS ANGELES, May 27, 2026\n\nLOS ANGELES, May 27, 2026 /PRNewswire/ -- Glancy Prongay Wolke & Rotter\nLLP\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=912219791&u=https%3A%2F%2Fwww.glancylaw.com%2F&a=Glancy+Prongay+Wolke+%26+Rotter+LLP)\nannounces that investors with losses have opportunity to lead the securities\nfraud class action lawsuit against Gossamer Bio, Inc. (\"Gossamer\" or the\n\"Company\") (NASDAQ: GOSS\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=461016672&u=https%3A%2F%2Ffinance.yahoo.com%2Fquote%2Fgoss&a=GOSS)\n).\n\n(https://mma.prnewswire.com/media/2877584/Glancy_Logo.html)\n\nIF YOU SUFFERED A LOSS ON YOUR GOSSAMER INVESTMENTS, CLICK HERE\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=1010506877&u=https%3A%2F%2Fwww.glancylaw.com%2Fcases%2FGossamer-Bio-Inc%2F&a=HERE)\n BEFORE JUNE 1, 2026 (LEAD PLAINTIFF DEADLINE) TO PARTICIPATE IN THE\nSECURITIES FRAUD LAWSUIT\n\nWhat Is The Lawsuit About?\nThe complaint filed alleges that, between June 16, 2025 and February 20, 2026,\nDefendants failed to disclose to investors that: (1) patients at the Latin\nAmerican sites were largely heavily-treated and lower risk and, ultimately,\nperformed particularly well on the placebo, thus, Gossamer's Phase 3 PROSERA\nstudy failed to meet the primary endpoint of improved six-minute walk distance\nat week 24; and (2) as a result, Defendants' positive statements about the\nCompany's business, operations, and prospects were materially misleading\nand/or lacked a reasonable basis at all relevant times.\n\nContact Us To Participate or Learn More:\nIf you wish to learn more about this action, or if you have any questions\nconcerning this announcement or your rights or interests with respect to these\nmatters, please contact us.\nCharles Linehan, Esq.,\nGlancy Prongay Wolke & Rotter LLP,\n1925 Century Park East, Suite 2100,\nLos Angeles California 90067\nEmail:  shareholders@glancylaw.com (mailto:shareholders@glancylaw.com)\nTelephone: 310-201-9150 (Toll-Free: 888-773-9224)\nVisit our website at www.glancylaw.com\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=1430345940&u=http%3A%2F%2Fwww.glancylaw.com%2F&a=www.glancylaw.com)\n.\n\nFollow us for updates on LinkedIn\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=2786780899&u=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fglancy-prongay-murray-llp&a=LinkedIn)\n, Twitter\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=3452426166&u=https%3A%2F%2Ftwitter.com%2FGPM_llp&a=Twitter)\n, or Facebook\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=790436831&u=https%3A%2F%2Fwww.facebook.com%2FGlancyLawFirm%2F&a=Facebook)\n.\n\nIf you inquire by email, please include your mailing address, telephone number\nand number of shares purchased.\n\nTo be a member of the class action you need not take any action at this time;\nyou may retain counsel of your choice or take no action and remain an absent\nmember of the class action.\n\nThis press release may be considered Attorney Advertising in some\njurisdictions under the applicable law and ethical rules.\n\nContact Us:\nGlancy Prongay Wolke & Rotter LLP,\n1925 Century Park East, Suite 2100,\nLos Angeles, CA 90067\nCharles Linehan\nEmail:  shareholders@glancylaw.com (mailto:shareholders@glancylaw.com)\nTelephone: 310-201-9150\nToll-Free: 888-773-9224\nVisit our website at: www.glancylaw.com\n(https://edge.prnewswire.com/c/link/?t=0&l=en&o=4697183-1&h=1163282467&u=https%3A%2F%2Fwww.glancylaw.com&a=www.glancylaw.com)\n.\n\nView original content to download\nmultimedia:https://www.prnewswire.com/news-releases/gossamer-bio-inc-goss-shareholders-who-lost-money-have-opportunity-to-lead-securities-fraud-lawsuit-302782955.html\n(https://www.prnewswire.com/news-releases/gossamer-bio-inc-goss-shareholders-who-lost-money-have-opportunity-to-lead-securities-fraud-lawsuit-302782955.html)\n\nSOURCE Glancy Prongay Wolke & Rotter LLP\n\n\n\nPhoto: \nhttps://mma.prnewswire.com/media/2877584/Glancy_Logo.jpg\n\nCopyright (c) 2026 PR Newswire Association,LLC. All Rights Reserved."},"type":"article","timestamp":"2026-05-27T16:00:16.714651644Z","server_sent_at_ms":1779897616714},"received_at":"2026-05-27T16:00:16.806Z","source_url":"https://www.prnewswire.com/news-releases/gossamer-bio-inc-goss-shareholders-who-lost-money-have-opportunity-to-lead-securities-fraud-lawsuit-302782955.html"},"analysis":{"id":"36306","press_release_id":"46875","analysis_json":{"industry":{"label":"Biotechnology","sector":"Health Care"},"redFlags":[],"eventType":"legal_litigation","narrative":"Glancy Prongay Wolke & Rotter LLP issued a shareholder-solicitation notice naming Gossamer Bio (GOSS); no new disclosure from the company itself.\n\nThe release is a routine lead-plaintiff-deadline reminder (June 1, 2026) soliciting investors with losses to contact the firm on a contingency basis.\n\nThis is law-firm marketing, not an issuer disclosure or a court action; treat as low-signal noise.","sentiment":"neutral","agentHooks":{"shouldPost":false,"suggestedAngle":"Plaintiff-firm solicitation -- suppress."},"keyFigures":{},"quotedText":"investors with losses have opportunity to lead the securities fraud class action lawsuit against Gossamer Bio, Inc.","namedEntities":{"people":[{"name":"Charles Linehan","role":"Attorney"}],"products":["PROSERA"],"companies":[{"name":"Gossamer Bio, Inc.","ticker":"GOSS","relationship":"defendant"},{"name":"Glancy Prongay Wolke & Rotter LLP","relationship":"plaintiff law firm"}],"dollarAmounts":[]},"materialImpact":{"score":1,"reasoning":"Plaintiff law-firm shareholder solicitation issued by Glancy Prongay Wolke & Rotter LLP. No new disclosure from the issuer; no certified class, no settlement. Boilerplate lead-plaintiff-deadline reminder."},"tickerRelevance":{"others":[],"primary":"GOSS"},"globalImportance":15,"audienceRelevance":10,"eventTypeSecondary":[],"importanceComponents":{"tickerTier":"small-cap","eventGravity":"law-firm-solicitation","issuerAuthored":false}},"event_type":"legal_litigation","event_type_secondary":null,"sentiment":"neutral","material_impact_score":1,"narrative":"Glancy Prongay Wolke & Rotter LLP issued a shareholder-solicitation notice naming Gossamer Bio (GOSS); no new disclosure from the company itself.\n\nThe release is a routine lead-plaintiff-deadline reminder (June 1, 2026) soliciting investors with losses to contact the firm on a contingency basis.\n\nThis is law-firm marketing, not an issuer disclosure or a court action; treat as low-signal noise.","key_figures":{},"named_entities":{"people":[{"name":"Charles Linehan","role":"Attorney"}],"products":["PROSERA"],"companies":[{"name":"Gossamer Bio, Inc.","ticker":"GOSS","relationship":"defendant"},{"name":"Glancy Prongay Wolke & Rotter LLP","relationship":"plaintiff law firm"}],"dollarAmounts":[]},"model_name":"qwen3_6_27b_awq","prompt_hash":"sha256:727b4b9429a443af","schema_hash":"sha256:05005c02d9cffac9","created_at":"2026-05-27T16:03:30.391Z","global_importance":15,"audience_relevance":10,"importance_components":{"tickerTier":"small-cap","eventGravity":"law-firm-solicitation","issuerAuthored":false}},"durationMs":24359,"modelName":"george-droid-qwen-72b"}}