Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Oct 3, 2017	M	6,110	—	A	6,110	D
Common Stock^F3	holding	—	—		—	5,967,123	I	TCV V, L.P.
Common Stock^F4	holding	—	—		—	118,286	I	TCV Member Fund, L.P.

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Restricted Stock Unit (RSU)^F5,F2,F1	—	Oct 3, 2017	M	6,110	D	—	—	Common Stock	6,110	0	D

Explanation of responses

F1Each restricted stock unit ("RSU") represents a contingent right to receive one share of the issuer's common stock.
F2Held of record by John C. Rosenberg for the benefit of TCV Management 2004, L.L.C. ("TCM"). Jay C. Hoag, Jon Q. Reynolds, Jr., Richard H. Kimball and John L. Drew (the "TCM Members") are members of TCM. Mr. Rosenberg and the TCM Members each disclaims beneficial ownership of such RSUs and the underlying shares of the issuer's common stock except to the extent of their pecuniary interest therein.
F3These securities are directly held by TCV V, L.P. ("TCV V"). Jay C. Hoag, Richard H. Kimball, John L. Drew, and Jon Q. Reynolds are Class A Members (collectively, the "TCM V Members") and John C. Rosenberg is an Assignee of Technology Crossover Management V, L.L.C. ("TCM V") which is the general partner of TCV V. The TCM V Members, Mr. Rosenberg and TCM V may be deemed to beneficially own the securities held by TCV V, but each of the TCM V Members, Mr. Rosenberg and TCM V disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.
F4These securities are directly held by TCV Member Fund, L.P. ("TCV Member Fund"). The TCM V Members are Members and Mr. Rosenberg is an Assignee of TCM V, which is a general partner of TCV Member Fund. The TCM V Members and Mr. Rosenberg are also limited partners of TCV Member Fund. The TCM V Members, Mr. Rosenberg and TCM V may be deemed to beneficially own the securities held by TCV Member Fund, but each of the TCM V Members, Mr. Rosenberg and TCM V disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.
F5This RSU vested upon the later of July 1, 2017 or the expiration of the lock-up period following the issuer's initial public offering. If not vested earlier, this RSU would have expired on September 21, 2026.

Remarks

All Reporting Persons may be part of a 13(g) group.