X0306 4 2022-04-01 0 0001098972 AGENUS INC AGEN 0001187314 WIINBERG ULF C/O AGENUS INC. 3 FORBES ROAD LEXINGTON MA 02421 1 0 0 0 Deferred Stock Units 2022-04-01 4 A 0 9307.809 A Common Stock 9307.809 129997.393 D Deferred Stock Units convert to shares of Common Stock on a 1 for 1 basis. Acquired under the Agenus Inc. Amended and Restated Directors' Deferred Compensation Plan, as amended (the "Plan"). Deferred Stock Units represent an equal amount of the Company's common stock to be distributed under the terms of the Plan, typically once the director ceases to serve as a director of the Company. $2.753 per Deferred Stock Unit acquired on April 1, 2022. The price of each Deferred Stock Unit acquired prior to April 1, 2022 is the average of the closing price for the Company's common stock for all trading days during the calendar quarter immediately preceding the date such Deferred Stock Unit was acquired pursuant to the Plan. /s/Christine Klaskin, as Attorney-in-Fact for Ulf Wiinberg 2022-04-05