Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock^F4,F1,F3	Aug 14, 2018	S	111,230	$55.00	D	637,002	I	See Footnotes
Class A Common Stock^F4,F2,F3	Aug 14, 2018	S	80,501	$55.00	D	461,018	I	See Footnotes
Class A Common Stock^F5,F1,F3	Aug 14, 2018	S	39,161	$55.64	D	597,841	I	See Footnotes
Class A Common Stock^F5,F2,F3	Aug 14, 2018	S	28,342	$55.64	D	432,676	I	See Footnotes
Class A Common Stock^F6,F1,F3	Aug 15, 2018	S	2,916	$53.34	D	594,925	I	See Footnotes
Class A Common Stock^F6,F2,F3	Aug 15, 2018	S	2,111	$53.34	D	430,565	I	See Footnotes
Class A Common Stock^F7,F1,F3	Aug 15, 2018	S	788	$54.40	D	594,137	I	See Footnotes
Class A Common Stock^F7,F2,F3	Aug 15, 2018	S	570	$54.40	D	429,995	I	See Footnotes
Class A Common Stock^F8,F1,F3	Aug 15, 2018	S	116	$55.11	D	594,021	I	See Footnotes
Class A Common Stock^F8,F2,F3	Aug 15, 2018	S	84	$55.11	D	429,911	I	See Footnotes

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1See Exhibit 99.1
F2See Exhibit 99.1
F3See Exhibit 99.1
F4See Exhibit 99.1
F5See Exhibit 99.1
F6See Exhibit 99.1
F7See Exhibit 99.1
F8See Exhibit 99.1

Remarks

Due to the limitation on the number of rows allowed on a Form 4, the Insight Coinvestment III Funds (as defined below) report such funds' beneficial ownership on a separate Form 4. Exhibit List: Exhibit 99.1 - Explanation of Responses Exhibit 99.2 - Joint Filers' Names and Addresses Exhibit 99.3 - Joint Filers' Signatures