GOSS · NASDAQ
Gossamer Bio (GOSS) Stock Price & Fundamentals
Gossamer Bio (GOSS) closed at $637.38 on Oct 9, 2026, up 0.96% from the previous close of $631.32.
Share price, past year
1Y +0.29%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $637.38 |
| Sep 30, 2026 | $638.84 |
| Aug 31, 2026 | $629.47 |
| Jul 31, 2026 | $658.03 |
| Jun 30, 2026 | $679.15 |
| May 29, 2026 | $696.19 |
| Apr 30, 2026 | $692.19 |
| Mar 31, 2026 | $666.90 |
| Feb 27, 2026 | $645.03 |
| Jan 30, 2026 | $626.36 |
| Dec 31, 2025 | $597.95 |
| Nov 28, 2025 | $621.61 |
| Oct 31, 2025 | $624.55 |
Key statistics
- Market cap
- $311.58B
- P/E (TTM)
- —
- EPS (TTM)
- −$0.70
- Revenue (TTM)
- $53.29M
- Net income (TTM)
- −$125.22M
- Shares outstanding
- 488.8M
- Dividend yield
- —
- 52-week range
- $594.79 – $707.24
Gossamer Bio's market cap is $311.58B, based on a share price of $637.38 and 488.8M shares outstanding as of Jun 30, 2026.
Financials
Gossamer Bio reported revenue of $48.47M for fiscal 2025, down 57.74% from fiscal 2024.
Gossamer Bio reported a net loss of $170.37M in fiscal 2025.
Annual revenue
| Fiscal year | Revenue | Growth | Net income | Net margin | EPS (diluted) | Free cash flow |
|---|---|---|---|---|---|---|
| FY2025ended Dec 31, 2025 | $48.47M | −57.7% | −$170.37M | −351.5% | −$0.75 | −$171.35M |
| FY2024ended Dec 31, 2024 | $114.70M | — | −$56.53M | −49.3% | −$0.25 | −$3.47M |
| FY2023ended Dec 31, 2023 | $0.00 | — | −$179.82M | — | −$1.18 | −$159.16M |
| FY2022ended Dec 31, 2022 | $0.00 | — | −$229.38M | — | −$2.71 | −$187.44M |
| Quarter | Revenue | Net income | EPS (diluted) |
|---|---|---|---|
| Q2 FY2026ended Jun 30, 2026 | $9.24M | $16.90M | −$0.08 |
| Q1 FY2026ended Mar 31, 2026 | $16.96M | −$46.66M | −$0.20 |
| Q4 FY2025ended Dec 31, 2025 | $13.80M | −$47.24M | −$0.21 |
| Q3 FY2025ended Sep 30, 2025 | $13.29M | −$48.22M | −$0.21 |
| Q2 FY2025ended Jun 30, 2025 | $11.49M | −$38.27M | −$0.17 |
| Q1 FY2025ended Mar 31, 2025 | $9.89M | −$36.64M | −$0.16 |
| Q4 FY2024ended Dec 31, 2024 | $9.38M | −$33.03M | −$0.14 |
| Q3 FY2024ended Sep 30, 2024 | $9.48M | −$30.80M | −$0.14 |
Company profile
- Name
- Gossamer Bio, Inc.
- Ticker
- GOSS
- Exchange
- NASDAQ
- Industry (SEC SIC)
- Pharmaceutical Preparations
- Headquarters
- 3115 Merryfield Row, Suite 120, San Diego, CA 92121
- Incorporated in
- DE
- Fiscal year ends
- December
- SEC CIK
- 0001728117
Recent SEC filings
- Sep 28, 2026
- Sep 23, 2026
- Sep 16, 2026
- Sep 11, 2026
- Sep 9, 2026
- Sep 3, 2026
- Aug 26, 2026
- Aug 21, 2026
Frequently asked questions
What is Gossamer Bio's stock price?
Gossamer Bio (GOSS) closed at $637.38 on Oct 9, 2026, up 0.96% from the previous close of $631.32.
What is Gossamer Bio's market cap?
Gossamer Bio's market cap is $311.58B, based on a share price of $637.38 and 488.8M shares outstanding as of Jun 30, 2026.
How much revenue does Gossamer Bio make?
Gossamer Bio reported revenue of $48.47M for fiscal 2025, down 57.74% from fiscal 2024.
Does Gossamer Bio pay a dividend?
Gossamer Bio's recent filings report no dividends declared over the last four quarters.
Sources and methodology
Fundamentals come from Gossamer Bio, Inc.'s filings with the SEC (EDGAR XBRL company facts). Fourth-quarter figures that companies don't report separately are calculated as the fiscal year minus the first three quarters. Trailing twelve-month (TTM) figures sum the latest four quarters. Prices are generated sample data for development. Last updated Oct 9, 2026. Data sources and disclosures