Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2,F3	Feb 14, 2019	M	4,836	—	A	12,513	I	See Footnote
Common Stock^F3,F4	holding	—	—		—	17,691,312	I	See Footnote
Common Stock^F3,F5	holding	—	—		—	1,813,022	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
Restricted Stock Units^F2,F3,F1,F6	—	Feb 14, 2019	M	4,836	D	—	—	Common Stock	4,836	0	I

Explanation of responses

F1Restricted Stock Units convert into common stock of the Issuer, par value $0.000025 per share ("Common Stock"), on a one-for-one basis.
F2Michael J. Angelakis directly beneficially owns 12,513 shares of Common Stock. The Restricted Stock Units reported herein were granted to Michael J. Angelakis in his capacity as a director of the Issuer.
F3This Form 4 is being filed by more than one Reporting Person. A-T Holdings GP, LLC is the general partner of AGI-T, L.P. Atairos Group, Inc. is the sole member and manager of A-T Holdings GP, LLC and the sole limited partner of AGI-T, L.P. A-A SMA GP, LLC is the general partner of A-A SMA, L.P. Atairos Group, Inc. is the sole member and manager of A-A SMA GP, LLC and the sole limited partner of A-A SMA, L.P. Atairos Partners, L.P. is the sole voting shareholder of Atairos Group, Inc. Atairos Partners GP, Inc. is the general partner of Atairos Partners, L.P. Michael J. Angelakis directly or indirectly controls a majority of the voting power of Atairos Partners GP, Inc. and serves on the board of directors of the Issuer. Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein.
F4AGI-T, L.P. directly beneficially owns 17,691,312 shares of Common Stock.
F5A-A SMA, L.P. directly beneficially owns 1,813,022 shares of Common Stock.
F6The Restricted Stock Units vested 100% on February 14, 2019.