Type	Name	Date
Underwriting agreement	Underwriting Agreement by and among Agenus Inc. and Jefferies LLC and William Blair & Company, L.L.C., as representatives of the underwriters named therein	05/27/2015
Securities purchase agreement	Securities Purchase Agreement	08/03/2009

Type	Name	Date
Equity incentive plans	Agenus Inc. 2019 Equity Incentive Plan	06/24/2019
Equity incentive plans	Agenus Inc. Amended and Restated 2009 Equity Incentive Plan	06/16/2016
Employment agreement	Employment Agreement between Agenus Inc. and Dr. Robert Stein	06/30/2015
Employment agreement	Employment Agreement between Agenus Inc. and Dr. Robert Stein	06/30/2015
Equity incentive plans	Fourth Amendment to Agenus 2009 Equity Incentive Plan	06/30/2015
Severance agreement	Agreement by and between Agenus Inc. and C. Evan Ballantyne	06/17/2015
Equity incentive plans	Amendment No. Three to Agenus 2009 Equity Incentive Plan	04/25/2014
Equity incentive plans	Amendment No. 2 to Agenus 2009 Equity Incentive Plan	06/17/2013

Type	Name	Date
Acquisition / asset purchase agreement	Asset Purchase Agreement by and among Agenus Inc., Celexion, LLC, Flagship Ventures Fund 2007 LP, Brian M. Baynes and Alexandria Equities, LLC	04/08/2015

Type	Name	Date
Lease agreement	Office Lease by and between Bay Center Investor LLC and Agenus Inc.	11/25/2020
Lease agreement	Office Lease by and between Bay Center Investor LLC and Agenus Inc.	11/25/2020