Explanation of Responses:
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(1)
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The transactions reported on this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the reporting person.
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(2)
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Represents the aggregate of sales effected on the same day at different prices.
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(3)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $130.37 to $130.79 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(4)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $131.63 to $132.39 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(5)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $132.66 to $133.54 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(6)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $134.06 to $134.96 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(7)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.06 to $135.21 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(8)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.09 to $136.86 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(9)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $134.39 to $135.33 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(10)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.44 to $136.42 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(11)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.45 to $137.43 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(12)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $137.49 to $137.93 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(13)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $138.64 to $139.60 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(14)
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The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.75 to $140.54 per share, 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 written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
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(15)
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The stock option vests and becomes exercisable in 48 equal monthly installments beginning on January 19, 2015, until such time as the option is 100% vested, subject to the continuing employment of the Reporting Person on each vesting date.
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(16)
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The stock option vested and became exercisable as to 25% of the shares subject to the option on May 12, 2015, and thereafter vests as to 1/48th of the shares in equal monthly installments, until such time as the option is 100% vested, subject to the continuing employment of the Reporting Person on each vesting date.
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