0001098972 2022-08-04 2022-08-04 AGENUS INC NASDAQ false 0001098972 --12-31 8-K 2022-08-04 DE 000-29089 06-1562417 3 Forbes Road Lexington MA 02421 (781) 674-4400 false false false false Common stock, par value $0.01 AGEN false