Transaction Details

Footnotes

The Common Shares reported herein as being sold were sold at a range of between $289.77 and $290.635 per share. The sale price reported above represents the weighted average sale price for the reported transaction and has been rounded to the nearest cent. 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 such price range. | Represents the payment of the exercise price and withholding taxes for an employee stock option through the attestation of previously owned shares. | The price is equal to the fair market value of the Common Shares at the time of exercise and is used to determine the value of the shares delivered to the Company by attestation of previously owned shares in payment of the exercise price and withholding taxes. Where applicable, the price reported above has been rounded to the nearest cent. | The Common Shares reported herein as being sold were sold at a range of between $289.77 and $290.65 per share. The sale price reported above represents the weighted average sale price for the reported transaction and has been rounded to the nearest cent. 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 such price range. | The Common Shares reported herein as being sold were sold at a range of between $289.77 and $290.615 per share. The sale price reported above represents the weighted average sale price for the reported transaction and has been rounded to the nearest cent. 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 such price range. | Options vested as follows: 1/3 on February 25, 2017, 1/3 on February 25, 2018 and 1/3 on February 25, 2019. | Options vested as follows: 1/3 on February 23, 2018, 1/3 on February 23, 2019 and 1/3 on February 23, 2020. | Total includes previously reported options from other tranches with different exercise prices, vesting and expiration dates.