Explanation of Responses:
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(1)
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Each Share of Class A Common Stock was issued upon conversion of one share of Class B Common Stock.
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(2)
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The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 14, 2018.
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(3)
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Reflects weighted average sale price. Actual sale prices ranged from $95.70 to $96.65 on September 11, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(4)
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Reflects weighted average sale price. Actual sale prices ranged from $96.70 to $97.60 on September 11, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(5)
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Reflects weighted average sale price. Actual sale prices ranged from $94.30 to $95.25 on September 12, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(6)
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Reflects weighted average sale price. Actual sale prices ranged from $95.30 to $96.25 on September 12, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(7)
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Reflects weighted average sale price. Actual sale prices ranged from $96.30 to $96.85 on September 12, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(8)
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Reflects weighted average sale price. Actual sale prices ranged from $94.05 to $95.00 on September 13, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(9)
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Reflects weighted average sale price. Actual sale prices ranged from $95.05 to $96.00 on September 13, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(10)
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Reflects weighted average sale price. Actual sale prices ranged from $96.05 to $96.70 on September 13, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(11)
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Reflects weighted average sale price. Actual sale prices ranged from $97.05 to $97.95 on September 13, 2018. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.
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(12)
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Options are fully vested and exercisable.
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(13)
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Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock held by a shareholder will convert automatically into one share of Class A Common Stock upon (i) any transfer of such share (subject to certain exceptions), or (ii) the occurrence of certain other specific instances, including the vote of the holders of the Class B Common Stock, as set forth in the issuer's Amended and Restated Certificate of Incorporation.
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(14)
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Vladimir Shmunis and Sandra Shmunis are the managing members of ELCA, LLC. ELCA, LLC is the general partner of ELCA Fund I, L.P., ELCA Fund II, L.P., and ELCA Fund III, L.P. By virtue of this relationship, Mr. Shmunis and Mrs. Shmunis may be deemed to share voting and dispositive power with respect to the shares held by ELCA Fund I, L.P., and certain of the shares held by ELCA Fund II, L.P. and ELCA Fund III, L.P. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.
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