Explanation of Responses:
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(1)
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The transaction reported on this Form 4 was effected pursuant to a trading plan previously adopted by Mr. Swift on August 9, 2019, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934.
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(2)
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Price reflected is the weighted average sale price for shares sold. The range of sales prices for the transactions reported was $59.97 - $60.02 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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(3)
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Price reflected is the weighted average sale price for shares sold. The range of sales prices for the transactions reported was $60.00 - $60.02 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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(4)
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Price reflected is the weighted average sale price for shares sold. The range of sales prices for the transactions reported was $58.97 - $59.96 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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(5)
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Price reflected is the weighted average sale price for shares sold. The range of sales prices for the transactions reported was $60.00 - $60.50 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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(6)
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The options became fully exercisable on March 1, 2014, the third anniversary of the grant date.
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(7)
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The options became fully exercisable on February 28, 2015, the third anniversary of the grant date.
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(8)
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The options became fully exercisable on March 5, 2016, the third anniversary of the grant date.
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(9)
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The options became fully exercisable on March 4, 2017, the third anniversary of the grant date.
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(10)
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The options became fully exercisable on March 3, 2018, the third anniversary of the grant date.
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(11)
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The options became fully exercisable on March 1, 2019, the third anniversary of the grant date.
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(12)
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One-third of the options became exercisable on February 28, 2018, an additional one-third of the options became exercisable on February 28, 2019 and the remaining one-third of the options will become exercisable on February 28, 2020, the third anniversary of the grant date.
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(13)
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One-third of the options will become exercisable on February 26, 2020, an additional one-third of the options will become exercisable on February 26, 2021 and the remaining one-third of the options will become exercisable on February 26, 2022, the third anniversary of the grant date.
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(14)
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One-third of the options became exercisable on February 27, 2019, an additional one-third of the options will become exercisable on February 27, 2020 and the remaining one-third of the options will become exercisable on February 27, 2021, the third anniversary of the grant date.
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