TRINET GROUP, INC.

Glossary of Acronyms and Abbreviations

Acronyms and abbreviations are used throughout this report, particularly in Part I, Item 1. Business; Part I, Item 1A. Risk Factors; Part II, Item 7. MD&A; Part II, Item 7A. Quantitative and Qualitative Disclosures About Market Risk and Part II, Item 8. Financial Statements and Supplementary Data.

Cautionary Note Regarding Forward-Looking Statements

For purposes of this Annual Report on Form 10-K (Form 10-K), the terms “TriNet,” “the Company,” “we,” “us” and “our” refer to TriNet Group, Inc., and its subsidiaries. This Form 10-K contains statements that are not historical in nature, are predictive in nature, or that depend upon or refer to future events or conditions or otherwise contain forward-looking statements within the meaning of Section 21 of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. Forward-looking statements are often identified by the use of words such as, but not limited to, “ability,” "achieve," “anticipate,” “believe,” “can,” “continue,” “could,” “design,” "drive," “estimate,” “expect,” “forecast,” "grow," “impact,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” "remain," “seek,” “should,” “strategy,” “target,” “value,” “will,” “would” and similar expressions or variations intended to identify forward-looking statements. Examples of forward-looking statements include, among others, TriNet’s expectations regarding: our plans and ability to grow our client base and our WSE base and maintain existing clients and WSEs; our expectations regarding medical utilization rates by our WSEs and the impact of inflation on our insurance costs; the effect that our stock repurchase program will have on our business; the impact of planned investments in and improvements to our technology platform and whether they will meet the needs of our current clients and attract new ones; our capital allocation; our cost discipline and ability to improve operating efficiencies; our strategic realignment and related restructuring initiatives; the impact of our client service initiatives and whether they enhance client experience and satisfaction; our continued ability to provide access to a broad range of benefit programs on a cost-effective and competitive basis; our expectations regarding the volume and severity of insurance claims and insurance claim trends; the effectiveness of our risk strategies for, and management of, workers' compensation, health benefit insurance costs and deductibles, the metrics that may be indicators of future financial performance; the relative value of our benefit offerings versus those SMBs can independently obtain; the impact that our benefit offerings have for SMBs seeking to attract and retain employees; the principal competitive drivers in our market; our plans to grow net new clients and manage client attrition; our investment strategy and its impact on our ability to generate future interest income, net income, and Adjusted EBITDA; seasonal trends and their impact on our business; fluctuations in the period-to-period timing of when we incur certain operating expenses; the impact of increases and decreases in interest rates on our investments and borrowings; the estimates and assumptions we use to prepare our financial statements; our belief we can meet our present and reasonably foreseeable cash needs and future commitments through existing liquid assets and continuing cash flows from corporate operating activities; our ability to declare and pay a dividend in the future; and other expectations, outlooks and forecasts on our future business, operational and financial performance.

Important factors that could cause actual results, level of activity, performance or achievements to differ materially from those expressed or implied by these forward-looking statements are discussed above and throughout this Form 10-K, including under Part I, Item 1A. Risk Factors, and Part II, Item 7. MD&A, and in the other periodic filings we make with the SEC, and include risk factors associated with: our ability to manage unexpected changes in workers’ compensation and health insurance claims and costs by WSEs; our ability to mitigate the distinct business risks we face as a co-employer; our inability to realize or sustain the expected benefits from our business realignment initiatives, and any associated increases in costs as a result of these initiatives; the effects of volatility in the financial and economic environment on the businesses that make up our client base; loss of clients for reasons beyond our control and the short-term contracts we typically use with our clients; the impact of regional or industry-specific economic and health factors on our operations; our ability to attract and retain qualified personnel; risks associated with our international operations; the impact of failures or limitations in the business systems and centers we rely upon; changes in our insurance coverage or our relationships with key insurance carriers; our ability to improve our services and technology to satisfy client and regulatory expectations; our ability to effectively integrate businesses we have acquired or may acquire in the future; the effects of increased competition and our ability to compete effectively; our ability to keep pace with changes in technology or provide timely enhancements to our solutions and support; the impact on our business of cyber-attacks, breaches, disclosures and other data-related incidents; our ability to comply with evolving data privacy, artificial intelligence and security laws; our ability to manage changes in, uncertainty regarding, or adverse application of the complex laws and regulations that govern our business; changing laws and regulations governing health insurance and employee benefits; our ability to be recognized as an employer of worksite employees and for our benefits plans to satisfy all requirements under federal and state regulations; changes in the laws and regulations that govern what it means to be an employer, employee or independent contractor; the impact of new and changing laws regarding remote work; our ability to comply with the licensing requirements that govern our solutions; the failure of third-party service providers performing their functions; the failure to comply with anti-corruption laws and regulations, economic and trade sanctions and similar laws; the outcome of existing and future legal and tax proceedings; fluctuation in our results of operations, stock price and maintenance of certain performance measures year over year due to factors outside of

our control; our ability to comply with the restrictions of our indebtedness and meet our debt obligations; the impact of potential bank or other financial institution failures or other events; the impact of changes in interest rates on funds held for clients; the impact of a change of our credit rating; the need for additional capital or to restructure our existing debt; the continuation of our stock repurchase program; and the impact of concentrated ownership in our stock by Atairos and other large stockholders and the anti-takeover provisions in our charter documents and under Delaware law. Any of these factors could cause our actual results to differ materially from our anticipated results.

Forward-looking statements are not guarantees of future performance but are based on management’s expectations as of the date of this Form 10-K and assumptions that are inherently subject to uncertainties, risks and changes in circumstances that are difficult to predict. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results, performance or achievements to be materially different from our current expectations and any past results, performance or achievements. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements.

The information provided in this Form 10-K is based upon the facts and circumstances known as of the date of this Form 10-K, and any forward-looking statements made by us in this Form 10-K speak only as of the date of this Form 10-K. We undertake no obligation to revise or update any of the information provided in this Form 10-K, except as required by law.

The MD&A of this Form 10-K includes references to our performance measures presented in conformity with GAAP and other non-GAAP financial measures that we use to manage our business, to make planning decisions, to allocate resources and to use as performance measures in our executive compensation plans. Refer to the Non-GAAP Financial Measures within our MD&A for definitions and reconciliations from GAAP measures.

Website Disclosures

We use our website (www.trinet.com) to announce material non-public information to the public and to comply with our disclosure obligations under Reg FD. We also use our website to communicate with the public about our Company, our services, and other matters. Our SEC filings, press releases and recent public conference calls and webcasts can also be found on our website. The information we post on our website could be deemed to be material information under Reg FD. We encourage investors and others interested in our Company to review the information we post on our website. Information contained in or accessible through our website is not a part of this report.