X0306 4 2018-02-17 0000937098 TRINET GROUP INC TNET 0001694481 AGI-T, L.P. C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true true 0001393014 Angelakis Michael J C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true true 0001671176 Atairos Partners GP, Inc. C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true 0001671185 Atairos Partners, L.P. C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true 0001671122 Atairos Group, Inc. C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true 0001694477 A-T Holdings GP, LLC C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true 0001697046 A-A SMA, L.P. C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true 0001697053 A-A SMA GP, LLC C/O ATAIROS MANAGEMENT, L.P. 40 MORRIS AVENUE BRYN MAWR PA 19010 true Common Stock 2018-02-17 4 M 0 7588 A 7677 I See footnote Common Stock 17691312 I See footnote Common Stock 1813022 I See footnote Restricted Stock Units 2018-02-17 4 M 0 7588 0 D Common Stock 7588 0 I See Footnote Restricted Stock Units convert into common stock, par value $0.000025 per share (the "Common Stock"), on a one-for-one basis. Michael J. Angelakis directly beneficially owns 7,677 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. This 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. AGI-T, L.P. directly beneficially owns 17,691,312 shares of the Common Stock. A-A SMA, L.P. directly beneficially owns 1,813,022 shares of Common Stock. The Restricted Stock Units vested 100% on February 17, 2018. The Restricted Stock Units are also subject to accelerated vesting upon certain events. By: ATAIROS PARTNERS GP, INC., by /s/ David L. Caplan, Vice President 2018-02-21 By: ATAIROS PARTNERS, L.P., by ATAIROS PARTNERS GP, INC., its general partner, by /s/ David L. Caplan, Vice President 2018-02-21 By: ATAIROS GROUP, INC., by /s/ David L. Caplan, Vice President and General Counsel 2018-02-21 By: A-T HOLDINGS GP, LLC, by ATAIROS GROUP, INC., its sole member and manager, by /s/ David L. Caplan, Authorized Signatory 2018-02-21 By: AGI-T, L.P., by A-T HOLDINGS GP, LLC, its general partner, by ATAIROS GROUP, INC., its sole member and manager, by /s/ David L. Caplan, Authorized Signatory 2018-02-21 By: A-A SMA, L.P., by A-A SMA GP, LLC, its general partner, by ATAIROS GROUP, INC., its sole member and manager, by /s/ David L. Caplan, Authorized Signatory 2018-02-21 By: A-A SMA GP, LLC, by ATAIROS GROUP, INC., its sole member and manager, by /s/ David L. Caplan, Authorized Signatory 2018-02-21 By: /s/ Michael J. Angelakis 2018-02-21