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10-Q

Quarterly Report

Gossamer Bio, Inc. GOSS

0001728117-25-000081

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Filed
Nov 5, 2025 12:00 AM ET
Period of report

On SEC.gov

Financials in this filing

Metric Period Value
Shares Outstanding Q3 2025 · Oct 31, 2025 231.46M sh
Shares Diluted Q3 2025 · Sep 30, 2025 227.98M sh
Shares Diluted Q3 2025 · Sep 30, 2025 227.36M sh
Shares Diluted Q3 2025 · Sep 30, 2024 226.35M sh
Shares Diluted Q3 2025 · Sep 30, 2024 226.1M sh
Capex Q3 2025 · Sep 30, 2025 $79K
Capex Q3 2025 · Sep 30, 2024 $0
Operating Cash Flow Q3 2025 · Sep 30, 2025 −$122.95M
Operating Cash Flow Q3 2025 · Sep 30, 2024 $32.01M
Cash And Equivalents Q3 2025 · Sep 30, 2025 $8.93M
Cash And Equivalents Q3 2025 · Dec 31, 2024 $46.07M
Stockholders Equity Q3 2025 · Sep 30, 2025 −$82.33M
Stockholders Equity Q3 2025 · Jun 30, 2025 −$46.11M
Stockholders Equity Q3 2025 · Mar 31, 2025 −$6.25M
Stockholders Equity Q3 2025 · Dec 31, 2024 $29.49M
Stockholders Equity Q3 2025 · Sep 30, 2024 $54.14M
Stockholders Equity Q3 2025 · Jun 30, 2024 $81.53M
Stockholders Equity Q3 2025 · Mar 31, 2024 $26.72M
Stockholders Equity Q3 2025 · Dec 31, 2023 $62.77M
Current Liabilities Q3 2025 · Sep 30, 2025 $62.12M
Current Liabilities Q3 2025 · Dec 31, 2024 $45.01M
Total Liabilities Q3 2025 · Sep 30, 2025 $291.15M
Total Liabilities Q3 2025 · Dec 31, 2024 $285.8M
Current Assets Q3 2025 · Sep 30, 2025 $203.99M
Current Assets Q3 2025 · Dec 31, 2024 $309.89M
Total Assets Q3 2025 · Sep 30, 2025 $208.82M
Total Assets Q3 2025 · Dec 31, 2024 $315.29M
Eps Diluted Q3 2025 · Sep 30, 2025 −$0.21
Eps Diluted Q3 2025 · Sep 30, 2025 −$0.54
Eps Diluted Q3 2025 · Sep 30, 2024 −$0.14
Eps Diluted Q3 2025 · Sep 30, 2024 −$0.10
Eps Basic Q3 2025 · Sep 30, 2025 −$0.21
Eps Basic Q3 2025 · Sep 30, 2025 −$0.54
Eps Basic Q3 2025 · Sep 30, 2024 −$0.14
Eps Basic Q3 2025 · Sep 30, 2024 −$0.10
Sga Expense Q3 2025 · Sep 30, 2025 $9.39M
Sga Expense Q3 2025 · Sep 30, 2025 $26.73M
Sga Expense Q3 2025 · Sep 30, 2024 $8.5M
Sga Expense Q3 2025 · Sep 30, 2024 $26.74M
Net Income Q3 2025 · Sep 30, 2025 −$48.22M
Net Income Q3 2025 · Sep 30, 2025 −$123.13M
Net Income Q3 2025 · Jun 30, 2025 −$38.27M
Net Income Q3 2025 · Mar 31, 2025 −$36.64M
Net Income Q3 2025 · Sep 30, 2024 −$30.8M
Net Income Q3 2025 · Sep 30, 2024 −$23.5M
Net Income Q3 2025 · Jun 30, 2024 $49.23M
Net Income Q3 2025 · Mar 31, 2024 −$41.93M
Operating Income Q3 2025 · Sep 30, 2025 −$49.11M
Operating Income Q3 2025 · Sep 30, 2025 −$124.69M
Operating Income Q3 2025 · Sep 30, 2024 −$33.92M
Operating Income Q3 2025 · Sep 30, 2024 −$23.79M
Revenue Q3 2025 · Sep 30, 2025 $13.29M
Revenue Q3 2025 · Sep 30, 2025 $34.67M
Revenue Q3 2025 · Sep 30, 2024 $9.48M
Revenue Q3 2025 · Sep 30, 2024 $105.32M