Gossamer Bio Inc.
GOSS | NASDAQ
$11.28
+$0.55 (+5.13%)
At close: Sep 21, 2026, 4:00 PM ET
$11.49
+$0.21 (+1.86%)
Pre-market:
Sep 22, 2026, 6:56 AM ET
Company Profile
Gossamer Bio, Inc., a clinical-stage biopharmaceutical company, focuses on discovering, acquiring, developing, and commercializing therapeutics in the disease areas of immunology, inflammation, and oncology in the United States. The company is developing GB002, an inhaled, small molecule, platelet-derived growth factor receptor, or PDGFR, colonystimulating factor 1 receptor, or CSF1R, and c-KIT inhibitor for the treatment of pulmonary arterial hypertension; GB004, a gut-targeted, oral small molecule for the treatment of inflammatory bowel disease; GB5121, an oral, irreversible, covalent, small molecule inhibitor of Bruton's Tyrosine Kinase for the treatment of primary central nervous system lymphoma; and GB7208, an oral, small molecule, BTK inhibitor for the treatment of multiple sclerosis. It has license agreements with Pulmokine, Inc. to develop and commercialize GB002 and related backup compounds; and Aerpio Pharmaceuticals, Inc. to develop and commercialize GB004 and related compounds. The company was formerly known as FSG, Bio, Inc. and changed its name to Gossamer Bio, Inc. in 2017. Gossamer Bio, Inc. was incorporated in 2015 and is headquartered in San Diego, California.
Key Executives
| Name | Position |
|---|---|
| Faheem Hasnain | Co-Founder, Chief Executive Officer, President & Chairman |
| Bryan Giraudo | Chief Operating Officer & Chief Financial Officer |
| Caryn L. Peterson | Executive Vice President of Regulatory Affairs |
| Christian Waage | Executive Vice President of Technical Operations & Administration |
| Deanna Weber | Executive Vice President of Human Resources |
| Jeanine Anthony | Senior Vice President of Marketing |
| Jeff Boerneke | General Counsel & Secretary |
| Matt Cravets | Senior Vice President of Biometrics |
| Richard Aranda | Chief Medical Officer |
| Robert F. Roscigno | Senior Vice President of Clinical Development of Pulmonary Vascular Disease |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Jan 28, 2026 | S-3ASR | Automatic shelf registration statement of securiti... |
| Jan 21, 2026 | SC 13G/A | [Amend] Statement of acquisition of beneficial own... |
| Jan 05, 2026 | 4 | Filing |
| Jan 05, 2026 | 4 | Filing |
| Jan 05, 2026 | 4 | Filing |
| Jan 05, 2026 | 4 | Filing |
| Jan 05, 2026 | 4 | Filing |
| Jan 05, 2026 | 4 | Filing |
| Nov 05, 2025 | 8-K | Current Report |
| Nov 05, 2025 | 10-Q | Quarterly Report |
Gossamer Bio Inc.
| Country | United States |
| IPO Date | Feb 7, 2019 |
| Industry | Biotechnology |
| Sector | Healthcare |
| Employees | 144 |
| CEO | Faheem Hasnain |
Contact Details
3013 Science Park Road San Diego,
California 92121 United States
Stock Details
| Ticker Symbol | GOSS |
| Exchange | NASDAQ |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| CIK Code | 0001728117 |
| CUSIP Number | 38341P102 |
| ISIN Number | US38341P1021 |
| SIC Code | 2834 |
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