Gossamer Bio, Inc. - Common Stock (GOSS)

0.3700
+0.0050 (1.37%)
NASDAQ · Last Trade: Apr 5th, 8:28 PM EDT
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Detailed Quote

Previous Close0.3650
Open0.3482
Bid0.3676
Ask0.3800
Day's Range0.3439 - 0.3814
52 Week Range0.3200 - 3.870
Volume5,810,719
Market Cap28.12M
PE Ratio (TTM)-0.5362
EPS (TTM)-0.7
Dividend & YieldN/A (N/A)
1 Month Average Volume12,268,916

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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

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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Gossamer Bio Stock Plummeted 82% Today — What’s Behind The Crash?stocktwits.com
Gossamer Bio’s seralutinib did not achieve the predefined statistical bar for its main goal in the phase 3 PROSERA trial.
Via Stocktwits · February 23, 2026
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Via Chartmill · February 23, 2026
Gossamer Bio Announces Topline Results from the Phase 3 PROSERA Study Evaluating Seralutinib in Pulmonary Arterial Hypertension
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 topline results for the PROSERA Phase 3 Study of seralutinib in patients with PAH. Gossamer Bio and the Chiesi Group are jointly developing seralutinib under a global collaboration agreement.
By Gossamer Bio, Inc. · Via Business Wire · February 23, 2026
Gossamer Bio Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)
Gossamer Bio, Inc. (Nasdaq: GOSS), a late-stage, clinical 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 that the Compensation Committee of Gossamer’s Board of Directors approved the grant, effective January 5th, 2026, to three non-executive employees of non-qualified stock option awards to purchase up to an aggregate of 212,500 shares of the Company’s common stock under the Gossamer Bio, Inc. 2023 Employment Inducement Incentive Award Plan (“2023 Inducement Plan”). The award was granted as an inducement material to the employees entering into employment with Gossamer in accordance with Nasdaq Listing Rule 5635(c)(4).
By Gossamer Bio, Inc. · Via Business Wire · January 8, 2026
Gossamer Bio Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)
Gossamer Bio, Inc. (Nasdaq: GOSS), a late-stage, clinical 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 that the Compensation Committee of Gossamer’s Board of Directors approved the grant, effective December 5th, 2025, to a non-executive employee of non-qualified stock option awards to purchase up to an aggregate of 200,000 shares of the Company’s common stock under the Gossamer Bio, Inc. 2023 Employment Inducement Incentive Award Plan (“2023 Inducement Plan”). The award was granted as an inducement material to the employee entering into employment with Gossamer in accordance with Nasdaq Listing Rule 5635(c)(4).
By Gossamer Bio, Inc. · Via Business Wire · December 9, 2025
Gossamer Bio to Participate in Upcoming Investor Conferences
Gossamer Bio, Inc. (Nasdaq: GOSS), a late-stage, clinical 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 that the Company will participate in the following investor conferences in December.
By Gossamer Bio, Inc. · Via Business Wire · November 24, 2025