Agenus to Webcast Annual Shareholders' Meeting

Agenus to Webcast Annual Shareholders' Meeting

LEXINGTON, Mass., June 10, 2013 (GLOBE NEWSWIRE) -- Agenus Inc. (Nasdaq:AGEN)
invites investors and the general public to its Annual Shareholders' Meeting
at 5:00 p.m. ET on Wednesday, June 12, 2013. The meeting will be held at the
company's headquarters located at 3 Forbes Road, Lexington, MA 02421.
Registration for attendees starts at 4:30 p.m. ET.

A live webcast will be accessible from the company's website at
www.agenusbio.com/webcast/ and will be archived and available for replay
approximately two hours after the meeting.

Agenus Inc. is a biotechnology company working to develop treatments for
cancers and infectious diseases. The company is focused on immunotherapeutic
products based on strong platform technologies with multiple product
candidates advancing through the clinic, including several product candidates
that have advanced into late-stage clinical trials through corporate partners.
Between Agenus and its partners, 21 programs are in clinical development. For
more information, please visit www.agenusbio.com.

CONTACT: Media and Investor Contact:
         Jonae R. Barnes
         Vice President
         Investor Relations and
         Corporate Communications
         jonae.barnes@agenusbio.com
         781-674-4538 Office
         617-818-2985 Cell

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