Agenus Inc SEC filings AGEN
Agenus Inc has 1,003 filings in SEC EDGAR's recent list, going back to Apr 29, 2014. 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 Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Sep 16, 2026 | Aug 5, 2026 |
| 3 | Initial insider ownership | Sep 15, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Aug 10, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 27, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 20, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 17, 2026 | — |
| 4 | Insider transaction | Jul 14, 2026 | Jul 10, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 4 | Insider transaction | Jun 16, 2026 | Jun 12, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 28, 2026 | Apr 24, 2026 |
| 4 | Insider transaction | Apr 21, 2026 | Apr 17, 2026 |
| 4 | Insider transaction | Apr 13, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 6, 2026 | Apr 3, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 24, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Jan 26, 2026 | Jan 23, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Jan 23, 2026 | — |
| 3 | Initial insider ownership | Jan 16, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 9, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 15, 2025 | Dec 12, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 4 | Insider transaction | Nov 17, 2025 | Nov 14, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Oct 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2025 | — |
| 4 | Insider transaction | Oct 21, 2025 | Oct 17, 2025 |
| 4 | Insider transaction | Oct 6, 2025 | Oct 3, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Sep 23, 2025 | Sep 19, 2025 |
| 4 | Insider transaction | Sep 9, 2025 | Sep 5, 2025 |
| 144 | Notice of proposed sale | Aug 29, 2025 | — |
| 4 | Insider transaction | Aug 26, 2025 | Aug 22, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 8, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 29, 2025 | — |
| 4 | Insider transaction | Jul 28, 2025 | Jul 25, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 16, 2025 | — |
| 4 | Insider transaction | Jul 15, 2025 | Jul 11, 2025 |
| 4 | Insider transaction | Jul 15, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jul 3, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 18, 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 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 6, 2025 | May 2, 2025 |
| 4 | Insider transaction | May 5, 2025 | Apr 18, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | Apr 22, 2025 | Apr 18, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 4, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 4, 2025 |
| 4 | Insider transaction | Apr 3, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Mar 27, 2025 | Mar 21, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 21, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 11, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 24, 2025 |
| 4 | Insider transaction | Jan 28, 2025 | Jan 24, 2025 |
| 4 | Insider transaction | Jan 28, 2025 | Jan 24, 2025 |
| 4 | Insider transaction | Jan 13, 2025 | Jan 10, 2025 |
| 4 | Insider transaction | Jan 2, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 2, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 29, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 8, 2024 | — |
| 4 | Insider transaction | Nov 4, 2024 | Nov 1, 2024 |
| SC 13G | Ownership over 5% (passive) | Oct 22, 2024 | — |
| 4 | Insider transaction | Oct 21, 2024 | Oct 18, 2024 |
| 4 | Insider transaction | Oct 7, 2024 | Oct 4, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Sep 24, 2024 | Sep 20, 2024 |
| 4 | Insider transaction | Sep 9, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Aug 27, 2024 | Aug 23, 2024 |
| 4 | Insider transaction | Aug 12, 2024 | Aug 9, 2024 |
| 3 | Initial insider ownership | Aug 8, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 8, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Jul 29, 2024 | Jul 26, 2024 |
| 4 | Insider transaction | Jul 15, 2024 | Jul 12, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jun 20, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 11, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 10, 2024 | — |
| 4 | Insider transaction | Jun 3, 2024 | May 31, 2024 |
| 4 | Insider transaction | May 20, 2024 | May 17, 2024 |
| 4 | Insider transaction | May 7, 2024 | May 3, 2024 |
| 4 | Insider transaction | Apr 22, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Apr 22, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Apr 22, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Apr 22, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Apr 22, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Apr 22, 2024 | Apr 19, 2024 |
| 4 | Insider transaction | Apr 8, 2024 | Apr 5, 2024 |
| 4 | Insider transaction | Apr 1, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 1, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 1, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Mar 25, 2024 | Mar 22, 2024 |
| 4 | Insider transaction | Mar 11, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Feb 27, 2024 | Feb 23, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 21, 2024 | — |
| 4 | Insider transaction | Feb 15, 2024 | Feb 15, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| 4 | Insider transaction | Feb 12, 2024 | Feb 9, 2024 |
| 5 | Annual insider ownership | Feb 12, 2024 | Dec 31, 2023 |
| 5 | Annual insider ownership | Feb 12, 2024 | Dec 31, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 4 | Insider transaction | Jan 29, 2024 | Jan 26, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 22, 2024 | — |
| 4 | Insider transaction | Jan 16, 2024 | Jan 12, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 4, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 29, 2023 |
| 4 | Insider transaction | Dec 18, 2023 | Dec 15, 2023 |
| 4 | Insider transaction | Dec 4, 2023 | Dec 1, 2023 |
| 4 | Insider transaction | Nov 20, 2023 | Nov 17, 2023 |
| 4 | Insider transaction | Nov 17, 2023 | Nov 15, 2023 |
| 4 | Insider transaction | Nov 6, 2023 | Nov 3, 2023 |
| 4 | Insider transaction | Oct 23, 2023 | Oct 20, 2023 |
| 4 | Insider transaction | Oct 16, 2023 | Oct 12, 2023 |
| 4 | Insider transaction | Oct 10, 2023 | Oct 6, 2023 |
| 4 | Insider transaction | Oct 6, 2023 | Oct 4, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Oct 4, 2023 | Oct 2, 2023 |
| 4 | Insider transaction | Sep 25, 2023 | Sep 22, 2023 |
| 4 | Insider transaction | Sep 11, 2023 | Sep 8, 2023 |
| 4 | Insider transaction | Aug 31, 2023 | Aug 29, 2023 |
| 4 | Insider transaction | Aug 28, 2023 | Aug 24, 2023 |
| 4 | Insider transaction | Jul 6, 2023 | Jul 3, 2023 |
| 4 | Insider transaction | Jul 6, 2023 | Jul 3, 2023 |
| 4 | Insider transaction | Jul 6, 2023 | Jul 3, 2023 |
| 4/A | Filing | May 26, 2023 | May 5, 2023 |
| 4/A | Filing | May 26, 2023 | May 1, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | May 26, 2023 | — |
| 4 | Insider transaction | May 12, 2023 | May 10, 2023 |
| 4 | Insider transaction | May 5, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 3, 2023 | May 1, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | May 3, 2023 | — |
| 4 | Insider transaction | Apr 3, 2023 | Apr 3, 2023 |
| 4 | Insider transaction | Apr 3, 2023 | Apr 3, 2023 |
| 4 | Insider transaction | Apr 3, 2023 | Apr 3, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
Showing 200 filings, the most recent 200. 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
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- AGEN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Lexington, MA
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1098972
- Former names
- ANTIGENICS INC /DE/ (until Jan 5, 2011)
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.