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 |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 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 |
| S-3 | Shelf registration | Sep 11, 2026 | — |
| S-8 | Employee stock plan registration | Sep 2, 2026 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Aug 18, 2026 | Aug 12, 2026 |
| 424B3 | Prospectus | Aug 17, 2026 | — |
| EFFECT | Filing | Aug 14, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Aug 13, 2026 | Aug 10, 2026 |
| 4 | Insider transaction | Aug 12, 2026 | Aug 10, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 11, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 5, 2026 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| S-8 | Employee stock plan registration | Aug 7, 2026 | — |
| S-3 | Shelf registration | Aug 7, 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 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| EFFECT | Filing | Jul 27, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 27, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 20, 2026 | — |
| S-3 | Shelf registration | Jul 20, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 17, 2026 | — |
| 4 | Insider transaction | Jul 14, 2026 | Jul 10, 2026 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure, Other events
|
Jul 13, 2026 | Jul 13, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 1, 2026 |
| 8-K |
Current report
Material agreement
|
Jul 6, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jun 30, 2026 | Jun 26, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 23, 2026 | Jun 16, 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 |
| 8-K |
Current report
Officer or director change
|
May 15, 2026 | May 12, 2026 |
| DEFA14A | Additional proxy material | May 13, 2026 | — |
| 10-Q | Quarterly report | May 11, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 11, 2026 | May 11, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| ARS | Annual report to shareholders | Apr 30, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 30, 2026 | Apr 30, 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 |
| PRE 14A | Preliminary proxy statement | Apr 20, 2026 | Apr 20, 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 | — |
| 8-K |
Current report
Other events
|
Mar 26, 2026 | Mar 24, 2026 |
| 4 | Insider transaction | Mar 24, 2026 | Mar 20, 2026 |
| 10-K | Annual report | Mar 16, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 16, 2026 | Mar 16, 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 |
| 8-K |
Current report
Acquisition or sale of assets, Unregistered share sale, Regulation FD disclosure
|
Jan 16, 2026 | Jan 15, 2026 |
| 8-K |
Current report
Officer or director change
|
Jan 14, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 9, 2026 |
| 8-K |
Current report
Material agreement, Change to shareholder rights
|
Jan 8, 2026 | Jan 3, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| S-3ASR | Automatic shelf registration | Dec 29, 2025 | — |
| 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 |
| 10-Q | Quarterly report | Nov 10, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2025 | Nov 10, 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 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 9, 2025 | Oct 8, 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 |
| 8-K |
Current report
Other events
|
Sep 23, 2025 | Sep 17, 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 |
| S-8 | Employee stock plan registration | Aug 12, 2025 | — |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2025 | Aug 11, 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 |
| 8-K |
Current report
Shareholder vote results
|
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 17, 2025 | Jun 13, 2025 |
| DEFR14A | Filing | Jun 6, 2025 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jun 4, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| EFFECT | Filing | May 30, 2025 | — |
| CORRESP | Letter to the SEC | May 28, 2025 | — |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| UPLOAD | Letter from the SEC | May 15, 2025 | — |
| S-3 | Shelf registration | May 12, 2025 | — |
| 10-Q | Quarterly report | May 12, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| 4 | Insider transaction | May 6, 2025 | May 2, 2025 |
| DEFR14A | Filing | May 5, 2025 | — |
| 4 | Insider transaction | May 5, 2025 | Apr 18, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| ARS | Annual report to shareholders | Apr 30, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Apr 30, 2025 | Apr 30, 2025 |
| 4 | Insider transaction | Apr 22, 2025 | Apr 18, 2025 |
| PRE 14A | Preliminary proxy statement | Apr 18, 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 |
| 10-K | Annual report | Mar 17, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Mar 11, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 11, 2025 | Mar 11, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Feb 21, 2025 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Feb 26, 2025 | Feb 20, 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 |
| 8-K |
Current report
Agreement ended
|
Feb 10, 2025 | Feb 4, 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 |
| 8-K |
Current report
Exit or restructuring costs
|
Dec 5, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 29, 2024 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Regulation FD disclosure
|
Nov 27, 2024 | Nov 26, 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 | — |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2024 | Nov 12, 2024 |
| 8-K/A |
Amended current report
Officer or director change
|
Nov 8, 2024 | Aug 8, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 8, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Nov 5, 2024 | Oct 30, 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 |
| 8-K |
Current report
Results of operations, Officer or director change, Other events
|
Aug 8, 2024 | Aug 7, 2024 |
| 424B5 | Prospectus supplement | Aug 8, 2024 | — |
| 3 | Initial insider ownership | Aug 8, 2024 | Aug 7, 2024 |
| 4 | Insider transaction | Aug 8, 2024 | Aug 7, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Agreement ended
|
Aug 2, 2024 | Jul 30, 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 |
| S-8 | Employee stock plan registration | Jun 25, 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 |
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.