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 First QS-21 Royalty Payment Due to Agenus is Triggered
 $15.1M Milestone from HealthCare Royalty Partners
 
 LEXINGTON, Mass., March 10, 2020 / PRNewswire/  -- Agenus Inc. (NASDAQ: AGEN), an immuno-oncology company with an  extensive pipeline of agents designed to activate immune response to  cancers, announced the triggering of a $15.1M milestone  payment from HealthCare Royalty Partners (HCR) based on net sales of  GlaxoSmithKline's (GSK's) Shingrix vaccine exceeding $2.0B in 2019.
 
 Agenus' proprietary QS-21 Stimulon™  is one of the most potent adjuvants known and is a key component in  GSK's Shingrix vaccine, which has generated blockbuster sales exceeding $2.3Bn in its second year after launch. Agenus is due another milestone amounting to $25.5M if Shingrix net sales exceed $2.75B over four consecutive quarters before 2026.
 
 
  
 About Agenus
 
 
 Agenus  is a clinical-stage immuno-oncology company focused on the discovery  and development of therapies that engage the body's immune system to  fight cancer. The Company's vision is to expand the patient populations  benefiting from cancer immunotherapy by pursuing combination approaches  that leverage a broad repertoire of antibody therapeutics, adoptive cell  therapies (through its AgenTus Therapeutics subsidiary), and  proprietary cancer vaccine platforms. The Company is equipped with a  suite of antibody discovery platforms and a state-of-the-art GMP  manufacturing facility with the capacity to support clinical programs.  Agenus is headquartered in Lexington, MA. For more information, please visit  www.agenusbio.com  and our Twitter handle @agenus_bio. Information that may be important  to investors will be routinely posted on our website and twitter.
 
 Forward-Looking Statements
 This  press release contains forward-looking statements that are made  pursuant to the safe harbor provisions of the federal securities laws,  including statements regarding the anticipated additional milestone  payment of $25 million based on GSK's sales of Shingrix.  These forward-looking statements are subject to risks and uncertainties  that could cause actual results to differ materially. These risks and  uncertainties include, among others, the factors described under the  Risk Factors section of our most recent Quarterly Report on Form 10-Q or  Annual Report on Form 10-K filed with the Securities and Exchange  Commission. Agenus cautions investors not to place considerable reliance  on the forward-looking statements contained in this release. These  statements speak only as of the date of this press release, and Agenus  undertakes no obligation to update or revise the statements, other than  to the extent required by law. All forward-looking statements are  expressly qualified in their entirety by this cautionary statement.
 
 Contact:
 
 Agenus Inc.
 Regina Grebla, PhD
 781-674-4495
 Regina.Grebla@agenusbio.com
 
 
 
 SOURCE  Agenus Inc.
 
 News Release Issued: Mar 10, 2020 (9:14am EDT)
 
 
 
 To view this release online and get more information about Agenus Bio InvestorRoom visit: investor.agenusbio.com
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