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10-K

Annual Report

Gossamer Bio, Inc. GOSS

0001728117-26-000017

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Filed
Mar 17, 2026 12:00 AM ET
Period of report

On SEC.gov

Financials in this filing

Metric Period Value
Shares Outstanding FY 2025 · Mar 10, 2026 234.7M sh
Shares Diluted FY 2025 · Dec 31, 2025 228.52M sh
Shares Diluted FY 2025 · Dec 31, 2024 226.23M sh
Shares Diluted FY 2025 · Dec 31, 2023 152.62M sh
Capex FY 2025 · Dec 31, 2025 $79K
Capex FY 2025 · Dec 31, 2024 $0
Capex FY 2025 · Dec 31, 2023 $0
Operating Cash Flow FY 2025 · Dec 31, 2025 −$171.27M
Operating Cash Flow FY 2025 · Dec 31, 2024 −$3.47M
Operating Cash Flow FY 2025 · Dec 31, 2023 −$159.16M
Cash And Equivalents FY 2025 · Dec 31, 2025 $37.73M
Cash And Equivalents FY 2025 · Dec 31, 2024 $46.07M
Stockholders Equity FY 2025 · Dec 31, 2025 −$122.76M
Stockholders Equity FY 2025 · Dec 31, 2024 $29.49M
Stockholders Equity FY 2025 · Dec 31, 2023 $62.77M
Stockholders Equity FY 2025 · Dec 31, 2022 $12.08M
Current Liabilities FY 2025 · Dec 31, 2025 $63.44M
Current Liabilities FY 2025 · Dec 31, 2024 $45.01M
Total Liabilities FY 2025 · Dec 31, 2025 $295.01M
Total Liabilities FY 2025 · Dec 31, 2024 $285.8M
Current Assets FY 2025 · Dec 31, 2025 $167.64M
Current Assets FY 2025 · Dec 31, 2024 $309.89M
Total Assets FY 2025 · Dec 31, 2025 $172.25M
Total Assets FY 2025 · Dec 31, 2024 $315.29M
Eps Diluted FY 2025 · Dec 31, 2025 −$0.75
Eps Diluted FY 2025 · Dec 31, 2024 −$0.25
Eps Diluted FY 2025 · Dec 31, 2023 −$1.18
Eps Basic FY 2025 · Dec 31, 2025 −$0.75
Eps Basic FY 2025 · Dec 31, 2024 −$0.25
Eps Basic FY 2025 · Dec 31, 2023 −$1.18
Sga Expense FY 2025 · Dec 31, 2025 $37.63M
Sga Expense FY 2025 · Dec 31, 2024 $36.13M
Sga Expense FY 2025 · Dec 31, 2023 $38.46M
Net Income FY 2025 · Dec 31, 2025 −$170.37M
Net Income FY 2025 · Dec 31, 2024 −$56.53M
Net Income FY 2025 · Dec 31, 2023 −$179.82M
Operating Income FY 2025 · Dec 31, 2025 −$170.73M
Operating Income FY 2025 · Dec 31, 2024 −$59.92M
Operating Income FY 2025 · Dec 31, 2023 −$183.76M
Revenue FY 2025 · Dec 31, 2025 $48.47M
Revenue FY 2025 · Dec 31, 2024 $114.7M
Revenue FY 2025 · Dec 31, 2023 $0