DEXCOM INC

The Board and each standing Board committee conducts a self-evaluation of their performance, composition, leadership structure, and governance at least annually. The evaluation format and process is supervised by the Nominating and Governance Committee. The evaluation is typically conducted as an interview with a third-party advisor. A summary of the results is presented to the Board on a “no-names” basis identifying any themes or issues that have emerged. The Board considers the results and ways in which Board processes and effectiveness may be enhanced. Based upon the assessment results, the Board agrees on improvement goals and tracks its progress against those goals over time.