Gossamer Bio, Inc. - Common Stock (GOSS)

0.4095
+0.0379 (10.20%)
NASDAQ · Last Trade: Apr 10th, 11:51 PM EDT
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Detailed Quote

Previous Close0.3716
Open0.3661
Bid0.3902
Ask0.4100
Day's Range0.3661 - 0.4290
52 Week Range0.3200 - 3.870
Volume11,775,580
Market Cap31.12M
PE Ratio (TTM)-0.5935
EPS (TTM)-0.7
Dividend & YieldN/A (N/A)
1 Month Average Volume11,394,326

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About Gossamer Bio, Inc. - Common Stock (GOSS)

Gossamer Bio Inc is a biotechnology company focused on discovering and developing innovative medicines to address significant unmet medical needs in various therapeutic areas, including immunology and oncology. The company employs a data-driven approach to identify and advance potential drug candidates through preclinical and clinical stages of development. By leveraging cutting-edge science and technology, Gossamer Bio aims to create targeted treatments that improve patient outcomes and quality of life in complex diseases. Read More

News & Press Releases

GOSS Investors Have Opportunity to Lead Gossamer Bio, Inc. Securities Fraud Lawsuit with the Schall Law Firm
LOS ANGELES, April 10, 2026 (GLOBE NEWSWIRE) -- The Schall Law Firm, a national shareholder rights litigation firm, reminds investors of a class action lawsuit against Gossamer Bio, Inc. (“Gossamer” or “the Company”) (NASDAQ: GOSS) for violations of §§10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission.
By Schall Law · Via GlobeNewswire · April 10, 2026
Deadline Approaching: Gossamer Bio, Inc. (GOSS) Shareholders Who Lost Money Urged To Contact Law Offices of Howard G. Smith
Law Offices of Howard G. Smith reminds investors of the upcoming June 1, 2026 deadline to file a lead plaintiff motion in the case filed on behalf of investors who purchased Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS) securities between June 16, 2025 and February 20, 2026, inclusive (the “Class Period”).
INVESTOR ALERT: Pomerantz Law Firm Reminds Investors with Losses on their Investment in Gossamer Bio, Inc. of Class Action Lawsuit and Upcoming Deadlines – GOSS
NEW YORK, April 07, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP announces that a class action lawsuit has been filed against Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS).   Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, (or 888.4-POMLAW), toll-free, Ext. 7980. Those who inquire by e-mail are encouraged to include their mailing address, telephone number, and the number of shares purchased. 
By Pomerantz LLP · Via GlobeNewswire · April 7, 2026
GOSS Investor Alert: Gossamer Bio Securities Fraud Lawsuit - Investors With Losses May Seek to Lead the Class Action After Company Allegedly Overstated Trial Prospects: Levi & Korsinsky
"We firmly believe that we have accomplished this patient selection goal." That was the promise. The reality: a Phase 3 trial that failed its primary endpoint, and shareholders who lost over 80% of their investment in a single trading session.
By Levi & Korsinsky, LLP · Via Business Wire · April 7, 2026
Glancy Prongay Wolke & Rotter LLP, a Leading Securities Fraud Law Firm Encourages Gossamer Bio, Inc. (GOSS) Shareholders To Inquire About Securities Fraud Class Action
Glancy Prongay Wolke & Rotter LLP, a leading national shareholder rights law firm, announces that a securities fraud class action lawsuit has been filed on behalf of investors who purchased or otherwise acquired Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS) securities between June 16, 2025 and February 20, 2026, inclusive (the “Class Period”). Gossamer investors have until June 1, 2026 to file a lead plaintiff motion.
GOSS Investors Have Opportunity to Lead Gossamer Bio, Inc. Securities Fraud Lawsuit with the Schall Law Firm
LOS ANGELES, April 07, 2026 (GLOBE NEWSWIRE) -- The Schall Law Firm, a national shareholder rights litigation firm, reminds investors of a class action lawsuit against Gossamer Bio, Inc. (“Gossamer” or “the Company”) (NASDAQ: GOSS) for violations of §§10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission.
By Schall Law · Via GlobeNewswire · April 7, 2026
Law Offices of Frank R. Cruz Encourages Gossamer Bio, Inc. (GOSS) Shareholders To Inquire About Securities Fraud Class Action
The Law Offices of Frank R. Cruz announces that a class action lawsuit has been filed on behalf of shareholders who purchased or otherwise acquired Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS) securities between June 16, 2025 and February 20, 2026, inclusive (the “Class Period”). Gossamer investors have until June 1, 2026 to file a lead plaintiff motion.
Law Offices of Howard G. Smith Encourages Gossamer Bio, Inc. (GOSS) Shareholders To Inquire About Securities Fraud Class Action
Law Offices of Howard G. Smith announces that a class action lawsuit has been filed on behalf of investors who purchased Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS) securities between June 16, 2025 and February 20, 2026, inclusive (the “Class Period”). Gossamer investors have until June 1, 2026 to file a lead plaintiff motion.
Securities Fraud Investigation Into Gossamer Bio, Inc. (GOSS) Announced – Shareholders Who Lost Money Urged To Contact Glancy Prongay Wolke & Rotter LLP, a Leading Securities Fraud Law Firm
Glancy Prongay Wolke & Rotter LLP, a leading national shareholder rights law firm, today announced that it has commenced an investigation on behalf of Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS) investors concerning the Company’s possible violations of the federal securities laws.
Gossamer Bio, Inc. (GOSS) Shareholders Who Lost Money – Contact Law Offices of Howard G. Smith About Securities Fraud Investigation
Law Offices of Howard G. Smith announces an investigation on behalf of Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS) investors concerning the Company’s possible violations of federal securities laws.
GOSS Investors Have Opportunity to Lead Gossamer Bio, Inc. Securities Fraud Lawsuit with the Schall Law Firm
LOS ANGELES, April 03, 2026 (GLOBE NEWSWIRE) -- The Schall Law Firm, a national shareholder rights litigation firm, reminds investors of a class action lawsuit against Gossamer Bio, Inc. (“Gossamer” or “the Company”) (NASDAQ: GOSS) for violations of §§10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission.
By Schall Law · Via GlobeNewswire · April 3, 2026
Gossamer Bio, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – GOSS
The DJS Law Group reminds investors of a class action lawsuit against Gossamer Bio, Inc. (“Gossamer” or “the Company”) (NASDAQ: GOSS) violations of §§10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission.
By DJS LAW GROUP · Via Business Wire · April 3, 2026
Securities Fraud Investigation Into Gossamer Bio, Inc. (GOSS) Announced – Shareholders Who Lost Money Urged to Contact The Law Offices of Frank R. Cruz
The Law Offices of Frank R. Cruz announces an investigation of Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS) on behalf of investors concerning the Company’s possible violations of federal securities laws.
GOSS Investors Have Opportunity to Lead Gossamer Bio, Inc. Securities Fraud Lawsuit with the Schall Law Firm
The Schall Law Firm, a national shareholder rights litigation firm, reminds investors of a class action lawsuit against Gossamer Bio, Inc. (“Gossamer” or “the Company”) (NASDAQ: GOSS) for violations of §§10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission.
By The Schall Law Firm · Via Business Wire · April 2, 2026
Bragar Eagel & Squire, P.C. Announces that a Class Action Lawsuit Has Been Filed Against Gossamer Bio, Inc. (NASDAQ:GOSS) and Encourages Investors with Large Losses to Contact the Firm
Bragar Eagel & Squire, P.C. Litigation Partner Brandon Walker Encourages Investors Who Suffered Losses In Gossamer (GOSS) To Contact Him Directly To Discuss Their Options
By Bragar Eagel & Squire · Via GlobeNewswire · April 1, 2026
Investor Notice: Robbins LLP Informs Investors of the Gossamer Bio, Inc. Class Action Lawsuit
Robbins LLP informs stockholders that a class action was filed on behalf of all investors who purchased or otherwise acquired Gossamer Bio, Inc. (NASDAQ: GOSS) securities between June 16, 2025 and February 20, 2026. Gossamer is a clinical stage biopharmaceutical company focused on the development and commercialization of seralutinib for the treatment of pulmonary hypertension (PH) associated with interstitial lung disease.
By Robbins LLP · Via Business Wire · April 1, 2026
GOSS DEADLINE ALERT: Faruqi & Faruqi, LLP Reminds Gossamer Bio (GOSS) Investors of Securities Class Action Deadline on June 1, 2026
Faruqi & Faruqi, LLP Securities Litigation Partner James (Josh) Wilson Encourages Investors Who Suffered Losses In Gossamer To Contact Him Directly To Discuss Their Options
By Faruqi & Faruqi LLP · Via GlobeNewswire · April 1, 2026
INVESTOR ALERT: Pomerantz Law Firm Investigates Claims on Behalf of Investors of Gossamer Bio, Inc. – GOSS
NEW YORK, March 24, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP is investigating claims on behalf of investors of Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS). Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, ext. 7980.
By Pomerantz LLP · Via GlobeNewswire · March 24, 2026
INVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Gossamer Bio, Inc. - GOSS
NEW YORK, March 17, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP is investigating claims on behalf of investors of Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS).  Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, ext. 7980.
By Pomerantz LLP · Via GlobeNewswire · March 17, 2026
Gossamer Bio Announces Fourth Quarter and Full-Year 2025 Financial Results and Provides Corporate Update
Gossamer Bio, Inc. (Nasdaq: GOSS), a biopharmaceutical company focused on the development and commercialization of seralutinib for the treatment of pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease (PH-ILD), today announced its financial results for the fourth quarter and year ended December 31, 2025, and provided a corporate update. Gossamer Bio and the Chiesi Group are jointly developing seralutinib under a global collaboration agreement.
By Gossamer Bio, Inc. · Via Business Wire · March 17, 2026
INVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Gossamer Bio, Inc. - GOSS
NEW YORK, March 10, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP is investigating claims on behalf of investors of Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS). Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, ext. 7980.
By Pomerantz LLP · Via GlobeNewswire · March 10, 2026
INVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of Gossamer Bio, Inc. - GOSS
NEW YORK, March 03, 2026 (GLOBE NEWSWIRE) -- Pomerantz LLP is investigating claims on behalf of investors of Gossamer Bio, Inc. (“Gossamer” or the “Company”) (NASDAQ: GOSS). Such investors are advised to contact Danielle Peyton at newaction@pomlaw.com or 646-581-9980, ext. 7980.
By Pomerantz LLP · Via GlobeNewswire · March 3, 2026
GOSS Investors Have Opportunity to Join Gossamer Bio, Inc. Fraud Investigation with the Schall Law Firm
The Schall Law Firm, a national shareholder rights litigation firm, announces that it is investigating claims on behalf of investors of Gossamer Bio, Inc. (“Gossamer” or “the Company”) (NASDAQ: GOSS) for violations of the securities laws.
By The Schall Law Firm · Via Business Wire · March 1, 2026
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