Transaction Details

Footnotes

The shares were sold by the reporting person for year-end tax planning. | The shares were sold in multiple transactions at prices ranging from $29.07 to $29.1985, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. | Reflects shares transferred as a gift to the James and Karena Xie Family Foundation (the "Foundation"), of which, the reporting person is the president and has voting and investment power over all securities owned by the foundation. | Securities held by The Hsieh Family Dynasty Trust, dated January 27, 2010 (the "Trust"). Mr. Xie serves on the investment committee of the Trust. Mr. Xie disclaims any beneficial interest except with respect to any pecuniary interest therein.