Gossamer Bio, Inc. SEC filings GOSS

Gossamer Bio, Inc. has 484 filings in SEC EDGAR's recent list, going back to Jan 19, 2018. Its latest annual report, Form ARS, was filed on Apr 24, 2026 for the period ended Apr 24, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (shareholder vote results). The company's fiscal year ends on December 31.

Form Description Filed Period
ARS Annual report to shareholders Apr 24, 2026 Apr 24, 2026
10-K Annual report Mar 17, 2026 Dec 31, 2025
ARS Annual report to shareholders Apr 29, 2025 Apr 28, 2025
10-K Annual report Mar 13, 2025 Dec 31, 2024
ARS Annual report to shareholders Apr 26, 2024 Apr 26, 2024
10-K Annual report Mar 5, 2024 Dec 31, 2023
ARS Annual report to shareholders Apr 28, 2023 Apr 28, 2023
10-K Annual report Mar 17, 2023 Dec 31, 2022
10-K Annual report Mar 3, 2022 Dec 31, 2021
10-K Annual report Feb 26, 2021 Dec 31, 2020
10-K Annual report Mar 24, 2020 Dec 31, 2019
10-K Annual report Mar 22, 2019 Dec 31, 2018

Showing 12 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

Company profile

Industry
Pharmaceutical Preparations (SIC 2834)
Listed as
GOSS (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
San Diego, CA
SEC filer status
Non-accelerated filer, Smaller reporting company
SEC CIK
1728117

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.