Medarex to Present at Three Upcoming Investor Conferences

Medarex, Inc. (NASDAQ:MEDX) announced today that it is scheduled to present at the following three conferences:

• Goldman Sachs 30^th Annual Global Healthcare Conference
  June 9, 2009 at 3:10 p.m. Eastern Time

• Needham Life Sciences Conference
  June 11, 2009 at 2:00 p.m. Eastern Time

• Jefferies 3^rd Annual Healthcare Conference
  June 17, 2009 at 11:15 a.m. Eastern Time

These events will be webcast live and will be available in the Investor Relations section of the Medarex website at www.medarex.com. An archived edition of the presentation will be available following the event.

About Medarex

Medarex is a biopharmaceutical company focused on the discovery, development and potential commercialization of fully human antibody-based therapeutics to treat life-threatening and debilitating diseases, including cancer, inflammation, autoimmune disorders and infectious diseases. Medarex applies its UltiMAb^® technology and product development and clinical manufacturing experience to generate, support and potentially commercialize a broad range of fully human antibody product candidates for itself and its partners. Over forty of these therapeutic product candidates derived from Medarex technology are in human clinical testing or have had INDs submitted for such trials, with the most advanced product candidates currently approved for commercial sale, the subject of regulatory applications for marketing authorization or in Phase 3 clinical trials. Medarex is committed to building value by developing a diverse pipeline of antibody products to address the world’s unmet healthcare needs. For more information about Medarex, visit its website at www.medarex.com.

Medarex®, the Medarex logo and UltiMAb® are registered trademarks of Medarex, Inc. All rights are reserved.