Transaction Details

Footnotes

Represents the number of shares required to be sold by the Reporting Person to cover the tax withholding obligation in connection with the settlement of vested restricted stock units. This sale is mandated by the Issuer's election under its equity incentive plans to require the Reporting Person to fund this tax withholding obligation by completing a "sell to cover" transaction with a brokerage firm designated by the Issuer. This sale does not represent a discretionary trade by the Reporting Person. | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.19 - $59.68, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. | These shares are owned by Backbone Partners, LLC ("Backbone"). The Reporting Person has the sole power to vote and dispose of the shares held by Backbone. The Reporting Person disclaims beneficial ownership of the shares owned by Backbone except to the extent, if any, of his pecuniary interest therein. | These shares are owned by the Stephen Trundle 2015 Gift Trust (the "Trust"). Certain members of the Reporting Person's immediate family are beneficiaries of the Trust. The Reporting Person disclaims beneficial ownership of the shares owned by the Trust except to the extent, if any, of his pecuniary interest therein. | These shares are owned by the Footings Advancement Trust (the "Advancement Trust"). The Reporting Person has the sole power to vote and dispose of the shares held by the Advancement Trust and certain members of the Reporting Person's immediate family are beneficiaries. The Reporting Person disclaims beneficial ownership of the shares owned by the Advancement Trust except to the extent, if any, of his pecuniary interest therein.