Septerna, Inc. SEC filings SEPN
Septerna, Inc. has 170 filings in SEC EDGAR's recent list, going back to Jul 13, 2023. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 19, 2026 | Oct 15, 2026 |
| 144 | Notice of proposed sale | Oct 1, 2026 | — |
| 144 | Notice of proposed sale | Oct 1, 2026 | — |
| 4 | Insider transaction | Sep 10, 2026 | Sep 8, 2026 |
| 3 | Initial insider ownership | Sep 3, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Sep 3, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 14, 2026 | — |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 4 | Insider transaction | Aug 13, 2026 | Aug 11, 2026 |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| 144 | Notice of proposed sale | Aug 11, 2026 | — |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Jul 17, 2026 | Jul 15, 2026 |
| 144 | Notice of proposed sale | Jul 15, 2026 | — |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 144 | Notice of proposed sale | Jun 26, 2026 | — |
| 4 | Insider transaction | Jun 24, 2026 | Jun 22, 2026 |
| 144 | Notice of proposed sale | Jun 22, 2026 | — |
| 144 | Notice of proposed sale | Jun 22, 2026 | — |
| 4 | Insider transaction | Jun 16, 2026 | Jun 12, 2026 |
| 144 | Notice of proposed sale | Jun 12, 2026 | — |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 26, 2026 |
| 144 | Notice of proposed sale | May 26, 2026 | — |
| 4 | Insider transaction | Apr 17, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 3 | Initial insider ownership | Jan 15, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Nov 13, 2025 | Nov 10, 2025 |
| 144 | Notice of proposed sale | Nov 10, 2025 | — |
| 4 | Insider transaction | Sep 29, 2025 | Sep 25, 2025 |
| 3 | Initial insider ownership | Sep 29, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jun 10, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 9, 2025 | — |
| 4 | Insider transaction | Apr 4, 2025 | Apr 2, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 13, 2025 | — |
| 4 | Insider transaction | Feb 7, 2025 | Feb 7, 2025 |
| 3 | Initial insider ownership | Jan 7, 2025 | Jan 6, 2025 |
| SC 13D | Ownership over 5% (active) | Nov 4, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 1, 2024 | — |
| 4 | Insider transaction | Oct 30, 2024 | Oct 28, 2024 |
| 4 | Insider transaction | Oct 28, 2024 | Oct 28, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
| 3 | Initial insider ownership | Oct 24, 2024 | Oct 24, 2024 |
Showing 107 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
- SEPN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- South San Francisco, CA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1984086
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.