X0206 3 2014-02-05 0 0001098972 AGENUS INC AGEN 0001290166 QVT Associates GP LLC 1177 AVENUE OF THE AMERICAS, 9TH FLOOR NEW YORK NY 10036 0 0 1 0 0001543904 QVT Fund V LP 1177 AVENUE OF THE AMERICAS, 9TH FLOOR NEW YORK NY 10036 0 0 1 0 Common Stock, $0.01 par value 9259260 I Through QVT Fund IV LP, QVT Fund V LP and Quintessence Fund L.P. QVT Associates GP LLC is the general partner of QVT Fund IV LP, which directly owns 1,194,466 shares of common stock, QVT Fund V LP, which directly owns 7,211,104 shares of common stock and Quintessence Fund L.P. (together with QVT Fund IV LP, and QVT Fund V LP, the "Funds"), which directly owns 853,690 shares of common stock. QVT Financial LP is the investment manager for the Funds and therefore may be deemed the beneficial owner of the common stock held by the Funds. QVT Financial GP LLC is the general partner of QVT Financial LP and therefore may be deemed the beneficial owner of common stock beneficially owned by QVT Financial LP. The reporting person disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein. /s/ Tracy Fu 2014-02-14