Xencor to Participate in Upcoming Investor Conferences

• Jefferies 6^th Annual IO Cell Therapy Summit
  Date: Friday, April 5, 2019
  Location: Boston, MA

• 18^th Annual Needham Healthcare Conference
  Date: Tuesday, April 9, 2019
  Presentation Time: 2:10 p.m. ET
  Location: New York, NY

A live webcast of the Needham Healthcare Conference presentation will be available under “Events & Presentations” in the Investors section of the Company’s website located at https://investors.xencor.com/events.cfm. A replay of the event will be posted on the Xencor website approximately one hour after the live event and will be available for 90 days following the event.

About Xencor, Inc.

Xencor is a clinical-stage biopharmaceutical company developing engineered monoclonal antibodies for the treatment of cancer, autoimmune disease, asthma and allergic diseases. Currently, 12 candidates engineered with Xencor’s XmAb^® technology are in clinical development internally and with partners. Xencor’s XmAb antibody engineering technology enables small changes to the structure of monoclonal antibodies resulting in new mechanisms of therapeutic action. For more information, please visit www.xencor.com.

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