JOINT FILING AGREEMENTJoint Filing Agreement • December 17th, 2013 • Baker Bros. Advisors Lp • Biological products, (no disgnostic substances)
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that this Statement on Schedule 13D relating to the Common Stock, $0.001 par value, of Seattle Genetics, Inc. is being filed with the Securities and Exchange Commission on behalf of each of them.
