Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Class A Common Stock	Feb 20, 2019	C	63,564	$0.00	A	329,193	D
Class A Common Stock^F3	Feb 20, 2019	S	55,755	$103.5048	D	273,438	D
Class A Common Stock^F4	Feb 20, 2019	S	42,835	$104.2935	D	230,603	D
Class A Common Stock	Feb 21, 2019	C	16,900	$0.00	A	247,503	D
Class A Common Stock^F5	Feb 21, 2019	S	3,605	$102.363	D	243,898	D
Class A Common Stock^F6	Feb 21, 2019	S	5,942	$103.5055	D	237,956	D
Class A Common Stock^F7	Feb 21, 2019	S	9,231	$104.1217	D	228,725	D
Class A Common Stock	Feb 22, 2019	C	16,901	$0.00	A	245,626	D
Class A Common Stock^F8	Feb 22, 2019	S	7,397	$105.4788	D	238,229	D
Class A Common Stock^F9	Feb 22, 2019	S	9,504	$105.9495	D	228,725	D

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option (right to buy)^F10	$1.10	Feb 20, 2019	M	4,677	D	—	Jan 18, 2020	Class B Common Stock	4,677	79,521	D
Class B Common Stock^F11	—	Feb 20, 2019	M	4,677	A	—	—	Class A Common Stock	4,677	4,677	D
Class B Common Stock^F11	—	Feb 20, 2019	C	4,677	D	—	—	Class A Common Stock	4,677	0	D
Stock Option (right to buy)^F10	$6.78	Feb 20, 2019	M	58,887	D	—	Sep 25, 2022	Class B Common Stock	58,887	657,781	D
Class B Common Stock^F11	—	Feb 20, 2019	M	58,887	A	—	—	Class A Common Stock	58,887	58,887	D
Class B Common Stock^F11	—	Feb 20, 2019	C	58,887	D	—	—	Class A Common Stock	58,887	0	D
Stock Option (right to buy)^F10	$1.10	Feb 21, 2019	M	4,677	D	—	Jan 18, 2020	Class B Common Stock	4,677	74,844	D
Class B Common Stock^F11	—	Feb 21, 2019	M	4,677	A	—	—	Class A Common Stock	4,677	4,677	D
Class B Common Stock^F11	—	Feb 21, 2019	C	4,677	D	—	—	Class A Common Stock	4,677	0	D
Stock Option (right to buy)^F10	$6.78	Feb 21, 2019	M	12,223	D	—	Sep 25, 2022	Class B Common Stock	12,223	645,558	D
Class B Common Stock^F11	—	Feb 21, 2019	M	12,223	A	—	—	Class A Common Stock	12,223	12,223	D
Class B Common Stock^F11	—	Feb 21, 2019	C	12,223	D	—	—	Class A Common Stock	12,223	0	D
Stock Option (right to buy)^F10	$1.10	Feb 22, 2019	M	4,678	D	—	Jan 18, 2020	Class B Common Stock	4,678	70,166	D
Class B Common Stock^F11	—	Feb 22, 2019	M	4,678	A	—	—	Class A Common Stock	4,678	4,678	D
Class B Common Stock^F11	—	Feb 22, 2019	C	4,678	D	—	—	Class A Common Stock	4,678	0	D
Stock Option (right to buy)^F10	$6.78	Feb 22, 2019	M	12,223	D	—	Sep 25, 2022	Class B Common Stock	12,223	633,335	D
Class B Common Stock^F11	—	Feb 22, 2019	M	12,223	A	—	—	Class A Common Stock	12,223	12,223	D
Class B Common Stock^F11	—	Feb 22, 2019	C	12,223	D	—	—	Class A Common Stock	12,223	0	D
Class B Common Stock^F12,F11	—	holding	—	—	—	—	—	Class A Common Stock	5,893,107	5,893,107	I
Class B Common Stock^F12,F11	—	holding	—	—	—	—	—	Class A Common Stock	7,200	7,200	I
Class B Common Stock^F12,F11	—	holding	—	—	—	—	—	Class A Common Stock	7,200	7,200	I
Class B Common Stock^F12,F11	—	holding	—	—	—	—	—	Class A Common Stock	111	111	I

Explanation of responses

F1Each share of Class A Common Stock was issued upon conversion of one share of Class B Common Stock.
F10Shares subject to the option are fully vested and immediately exercisable.
F11Each 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.
F12Vladimir 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.
F2The 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.
F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.83 to $103.82, 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 ranges set forth in footnotes (3) through (9) to this Form 4.
F4The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $103.83 to $104.81, inclusive.
F5The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $101.93 to $102.90, inclusive.
F6The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $102.95 to $103.94, inclusive.
F7The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $103.95 to $104.42, inclusive.
F8The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $104.80 to $105.79, inclusive.
F9The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $105.80 to $106.26, inclusive.