Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock, par value $0.001 per share ("Class A C^F1,F2	Jul 19, 2018	S	15,785	$68.4151	D	242,572	I	See footnotes
Class A Common Stock^F1,F3	Jul 19, 2018	S	3,200	$68.4151	D	49,196	I	See footnotes
Class A Common Stock^F1,F4	Jul 19, 2018	S	15,890	$68.4151	D	244,315	I	See footnotes
Class A Common Stock^F1,F2	Jul 19, 2018	S	9,050	$68.3337	D	233,522	I	See footnotes
Class A Common Stock^F1,F3	Jul 19, 2018	S	1,835	$68.3337	D	47,361	I	See footnotes
Class A Common Stock^F1,F4	Jul 19, 2018	S	9,115	$68.3337	D	235,200	I	See footnotes
Class A Common Stock^F1,F2	Jul 19, 2018	S	7,150	$68.3118	D	226,372	I	See footnotes
Class A Common Stock^F1,F3	Jul 19, 2018	S	1,450	$68.3118	D	45,911	I	See footnotes
Class A Common Stock^F1,F4	Jul 19, 2018	S	7,200	$68.3118	D	228,000	I	See footnotes
Class A Common Stock^F1,F2	Jul 20, 2018	S	1,956	$69.2718	D	224,416	I	See footnotes
Class A Common Stock^F1,F3	Jul 20, 2018	S	399	$69.2718	D	45,512	I	See footnotes
Class A Common Stock^F1,F4	Jul 20, 2018	S	1,969	$69.2718	D	226,031	I	See footnotes

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses