Gossamer Bio, Inc. Common Stock Shares Outstanding

Quick Answer

Gossamer Bio, Inc. reported Common Stock Shares Outstanding of 233.68 million shares for the year ending 2025.

  • Gossamer Bio, Inc. showed an increase of +3.1% in Common Stock Shares Outstanding from 2024 to 2025.
  • This data is from Gossamer Bio, Inc.'s annual report (Form 10-K), filed with the SEC on March 17, 2026.
  • XBRL data for this metric is available from 2018 to 2025 (8 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
  • Over the full 8 years of available data (2018 to 2025), Gossamer Bio, Inc.'s Common Stock Shares Outstanding has grown by 2,802.3%.
  • Historical annual values: Fiscal year 2025: 233.68 million shares | Fiscal year 2024: 226.60 million shares | Fiscal year 2023: 225.41 million shares | Fiscal year 2022: 94.42 million shares | Fiscal year 2021: 75.75 million shares | Fiscal year 2020: 73.87 million shares | Fiscal year 2019: 61.64 million shares | Fiscal year 2018: 8.05 million shares.
  • Data sourced from SEC EDGAR public filings as of June 23, 2026.

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