Seattle Genetics, Inc. (NASDAQ:SGEN) announced today that Clay B. Siegall, Ph.D., President and Chief Executive Officer, will present at the 30th Annual J.P. Morgan Healthcare Conference on Monday, January 9, 2012 at 10:30 a.m. Pacific Time. The presentation will be webcast live and available for replay from Seattle Genetics' website at http://www.seattlegenetics.com in the Investors and News section.

About Seattle Genetics

Seattle Genetics is a biotechnology company focused on the development and commercialization of monoclonal antibody-based therapies for the treatment of cancer. The U.S. Food and Drug Administration granted accelerated approval of ADCETRIS? on August 19, 2011 for two indications. ADCETRIS is being developed in collaboration with Millennium: The Takeda Oncology Company. In addition, Seattle Genetics has three other clinical-stage ADC programs: SGN-75, ASG-5ME and ASG-22ME. Seattle Genetics has collaborations for its ADC technology with a number of leading biotechnology and pharmaceutical companies, including Abbott, Bayer, Celldex Therapeutics, Daiichi Sankyo, Genentech, GlaxoSmithKline, Millennium, Pfizer and Progenics, as well as ADC co-development agreements with Agensys, an affiliate of Astellas, and Genmab. More information can be found at www.seattlegenetics.com.

Seattle Genetics, Inc.
Peggy Pinkston, 425-527-4160
ppinkston@seagen.com