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.

Agenus Inc SEC filings
Form Description Filed Period
S-3 Shelf registration Sep 11, 2026 —
S-8 Employee stock plan registration Sep 2, 2026 —
424B3 Prospectus Aug 17, 2026 —
S-8 Employee stock plan registration Aug 7, 2026 —
S-3 Shelf registration Aug 7, 2026 —
S-3 Shelf registration Jul 20, 2026 —
S-3ASR Automatic shelf registration Dec 29, 2025 —
S-8 Employee stock plan registration Aug 12, 2025 —
S-3 Shelf registration May 12, 2025 —
424B5 Prospectus supplement Aug 8, 2024 —
S-8 Employee stock plan registration Jun 25, 2024 —
S-8 Employee stock plan registration Mar 15, 2024 —
POS AM Filing Mar 14, 2024 —
S-3ASR Automatic shelf registration Jun 23, 2023 —
S-8 Employee stock plan registration Jun 23, 2023 —
S-3ASR Automatic shelf registration Dec 23, 2022 —
S-8 Employee stock plan registration Aug 11, 2022 —
424B5 Prospectus supplement Mar 1, 2022 —
S-3ASR Automatic shelf registration Nov 12, 2021 —
S-3ASR Automatic shelf registration Jul 22, 2020 —
S-3 Shelf registration Oct 25, 2019 —
S-8 Employee stock plan registration Aug 7, 2019 —
S-8 Employee stock plan registration Aug 7, 2019 —
424B5 Prospectus supplement Dec 19, 2018 —
S-3 Shelf registration Nov 8, 2018 —
S-8 Employee stock plan registration Nov 8, 2018 —
424B5 Prospectus supplement May 11, 2018 —
S-3 Shelf registration Jan 24, 2018 —
S-3 Shelf registration Nov 9, 2017 —
S-3 Shelf registration Oct 18, 2017 —
S-3/A Filing Mar 16, 2017 —
S-3/A Filing Feb 16, 2017 —
S-3 Shelf registration Jan 20, 2017 —
S-8 Employee stock plan registration Aug 4, 2016 —
S-3/A S-3/a - amendment no. 1 Apr 8, 2016 —
S-3 Shelf registration Mar 4, 2016 —
S-3 Shelf registration Feb 26, 2016 —
S-8 Employee stock plan registration Jan 21, 2016 —
S-3 Shelf registration Jan 6, 2016 —
S-3 Shelf registration Nov 20, 2015 —
S-3 Shelf registration Aug 21, 2015 —
424B5 Prospectus supplement May 21, 2015 —
424B5 Prospectus supplement May 20, 2015 —
S-3 Shelf registration May 1, 2015 —
S-3 Shelf registration Oct 10, 2014 —
S-3 Shelf registration May 9, 2014 —
S-8 Employee stock plan registration May 9, 2014 —

Showing 47 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.

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)

Other Biological Products, (No Diagnostic Substances) companies

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