TRINET GROUP, INC.

Other Information

On May 23, 2025, Sidney Majalya, our Chief Legal Officer, adopted a new written trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act (the “Majalya Plan”). The first possible trade date under the Majalya Plan is August 25, 2025, and the end date of the Majalya Plan is May 20, 2027 (subject to customary exceptions), for a duration of approximately two years. The aggregate number of shares currently expected to be sold pursuant to the Majalya Plan is 6,200.

On May 2, 2025, Anthony Shea Treadway, our Chief Revenue Officer, adopted a new written trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act (the “Treadway Plan”). The

first possible trade date under the Treadway Plan is August 19, 2025, and the end date of the Treadway Plan is May 19, 2026 (subject to customary exceptions), for a duration of approximately one year. The Treadway Plan calls for the sale of an amount of shares that Mr. Treadway could receive upon the future vesting of certain outstanding and expected equity awards, net of any shares withheld by us to satisfy applicable taxes. The exact number of shares to be sold pursuant to the Treadway Plan depends on the number of shares to be withheld by us and the amount of any additional equity awards that may be granted and that will vest during the duration of the Treadway Plan, among other factors. For purposes of this disclosure, without taking into account (i) any future equity awards account under the company’s equity-based incentive plans (ii) any new shares purchased under the company’s employee stock purchase plan or (iii) subtracting any shares to be withheld upon future vesting events, the aggregate number of shares currently expected to be sold pursuant to the Treadway Plan is 12,411.