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 |
|---|---|---|---|
| D | Filing | Sep 4, 2026 | — |
| EFFECT | Filing | Mar 18, 2026 | — |
| POSASR | Filing | Mar 17, 2026 | — |
| EFFECT | Filing | Aug 28, 2023 | — |
| UPLOAD | Letter from the SEC | Aug 24, 2023 | — |
| CORRESP | Letter to the SEC | Aug 24, 2023 | — |
| DEL AM | Filing | Aug 21, 2023 | — |
| RW | Filing | Aug 18, 2023 | — |
| D | Filing | Aug 7, 2023 | — |
| D | Filing | Jul 18, 2022 | — |
| 305B2 | Filing | May 18, 2020 | — |
| CT ORDER | Filing | Feb 8, 2019 | — |
| EFFECT | Filing | Feb 7, 2019 | — |
| CORRESP | Letter to the SEC | Feb 5, 2019 | — |
| CORRESP | Letter to the SEC | Feb 5, 2019 | — |
| CERT | Filing | Feb 5, 2019 | — |
| 8-A12B | Filing | Feb 4, 2019 | — |
| CORRESP | Letter to the SEC | Dec 26, 2018 | — |
| CORRESP | Letter to the SEC | Dec 21, 2018 | — |
| UPLOAD | Letter from the SEC | Dec 14, 2018 | — |
| DRSLTR | Filing | Nov 29, 2018 | — |
| DRS/A | Filing | Nov 29, 2018 | — |
| UPLOAD | Letter from the SEC | Nov 9, 2018 | — |
| DRS | Filing | Oct 11, 2018 | — |
| D | Filing | Aug 1, 2018 | — |
| D | Filing | Jan 19, 2018 | — |
| D | Filing | Jan 19, 2018 | — |
Showing 27 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.
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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.