Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Existing Class A Common Stock^F1,F4,F9	Jan 28, 2015	C	7,076,139	—	A	7,076,139	I	See Footnote
Existing Class A Common Stock^F2,F4,F9	Jan 28, 2015	J	7,076,139	—	D	0	I	See Footnote
Existing Class A Common Stock^F1,F5,F9	Jan 28, 2015	C	18,627	—	A	18,627	I	See Footnote
Existing Class A Common Stock^F2,F5,F9	Jan 28, 2015	J	18,627	—	D	0	I	See Footnote
Existing Class A Common Stock^F1,F6,F9	Jan 28, 2015	C	441,949	—	A	441,949	I	See Footnote
Existing Class A Common Stock^F2,F6,F9	Jan 28, 2015	J	441,949	—	D	0	I	See Footnote
Existing Class A Common Stock^F1,F7,F9	Jan 28, 2015	C	82,194	—	A	82,194	I	See Footnote
Existing Class A Common Stock^F2,F7,F9	Jan 28, 2015	J	82,194	—	D	0	I	See Footnote
Existing Class A Common Stock^F1,F8,F9	Jan 28, 2015	C	17,651	—	A	17,651	I	See Footnote
Existing Class A Common Stock^F2,F8,F9	Jan 28, 2015	J	17,651	—	D	0	I	See Footnote

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Series E Preferred Stock^F1,F4,F9	—	Jan 28, 2015	C	7,076,139	D	—	—	Existing Class A Common Stock	7,076,139	0	I
Class B Common Stock^F3,F4,F9	—	Jan 28, 2015	J	7,076,139	A	—	—	Class A Common Stock	7,076,139	7,076,139	I
Series E Preferred Stock^F1,F5,F9	—	Jan 28, 2015	C	18,627	D	—	—	Existing Class A Common Stock	18,627	0	I
Class B Common Stock^F3,F5,F9	—	Jan 28, 2015	J	18,627	A	—	—	Class A Common Stock	18,627	18,627	I
Series E Preferred Stock^F1,F6,F9	—	Jan 28, 2015	C	441,949	D	—	—	Existing Class A Common Stock	441,949	0	I
Class B Common Stock^F3,F6,F9	—	Jan 28, 2015	J	441,949	A	—	—	Class A Common Stock	441,949	441,949	I
Series E Preferred Stock^F1,F7,F9	—	Jan 28, 2015	C	82,194	D	—	—	Existing Class A Common Stock	82,194	0	I
Class B Common Stock^F3,F7,F9	—	Jan 28, 2015	J	82,194	A	—	—	Class A Common Stock	82,194	82,194	I
Series E Preferred Stock^F1,F8,F9	—	Jan 28, 2015	C	17,651	D	—	—	Existing Class A Common Stock	17,651	0	I
Class B Common Stock^F3,F8,F9	—	Jan 28, 2015	J	17,651	A	—	—	Class A Common Stock	17,651	17,651	I

Explanation of responses

F1The Series E Preferred Stock automatically converted into the Issuer's existing Class A Common Stock ("Existing Class A Common Stock") on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering and had no expiration date.
F2Immediately prior to the closing of the Issuer's initial public offering and following the conversion of the Issuer's convertible preferred stock into Existing Class A Common Stock, each share of Existing Class A Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.
F3Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.
F4By General Atlantic Partners 90, L.P. ("GAP 90")
F5By GAP Coinvestments CDA, L.P. ("CDA")
F6By GAP Coinvestments III LLC ("GAPCO III")
F7By GAP Coinvestments IV LLC ("GAPCO IV")
F8By GAPCO GmbH & Co, KG ("GAPCO KG")
F9The general partner of GAP 90 is General Atlantic GenPar, L.P. ("GA GenPar") and the general partner of GA GenPar is General Atlantic LLC ("GA LLC"). GA LLC is the managing member of GAPCO III and GAPCO IV and the general partner of CDA. The general partner of GAPCO KG is GAPCO Management GmbH ("Management"). The Managing Directors of GA LLC control the voting and dispositive decisions made by GAPCO KG and Management.

Remarks

Each of the reporting persons described in the notes above may be deemed to be a member of a "group" for purposes of the Securities Exchange Act of 1934. Each reporting person disclaims beneficial ownership of any securities deemed to be owned by the group that are not directly owned by the reporting person. This report shall not be deemed an admission that the reporting persons are a member of a group or the beneficial owner of any securities not directly owned by the reporting person.