INSPERITY, INC.

Insperity, Inc., a Delaware corporation (“Insperity,” “we,” “our,” and “us”), provides an array of human resources (“HR”) and business solutions designed to help improve business performance. Our most comprehensive HR services offerings are provided through our professional employer organization (“PEO”) services, known as our Insperity® HR 360 solution (formerly our Workforce Optimization®solution) and Insperity® HR 360 Select Edition (formerly our Workforce Synchronization TM solution) (together, our “PEO HR Solutions”), which we provide by entering into a co-employment relationship with our clients. Our PEO HR Solutions encompass a broad range of HR functions, including payroll and employment administration, employee benefits, workers’ compensation, government compliance, performance management, and training and development services, along with our cloud-based human capital management solution, the Insperity Premier TMplatform.

In addition to our PEO HR Solutions, we offer a comprehensive traditional payroll and human capital management solution, known as our Insperity HRCore™ solution (formerly our Workforce Acceleration™ solution), which we refer to as our “Traditional HR Solution”. We also offer a number of other business performance solutions, including Recruiting Services, Employment Screening, Retirement Services, and Insurance Services. These other products or services are offered separately or with our other solutions.

The Consolidated Financial Statements include the accounts of Insperity, Inc. and its wholly owned subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

The accompanying Consolidated Financial Statements should be read in conjunction with our audited Consolidated Financial Statements at and for the year ended December 31, 2024. Our Condensed Consolidated Balance Sheets at December 31, 2024 have been derived from the audited financial statements at that date, but do not include all of the information or footnotes required by GAAP for complete financial statements. Our Condensed Consolidated Balance Sheets at September 30, 2025 and our Consolidated Statements of Income for the three and nine month periods ended September 30, 2025 and 2024, our Consolidated Statements of Cash Flows for the nine month periods ended September 30, 2025 and 2024 and our Consolidated Statements of Stockholders' Equity for each of the three and nine month periods ended September 30, 2025 and 2024, have been prepared by us without audit. In the opinion of management, all adjustments necessary to present fairly the consolidated financial position, results of operations and cash flows have been made, and all such adjustments are of a normal recurring nature.

The results of operations for the interim periods are not necessarily indicative of the operating results for a full year or of future operations.

Health Insurance Costs

We provide group health insurance coverage under a single-employer plan that covers both our WSEEs in our PEO HR Solutions and our corporate employees and utilizes a national network of carriers, including UnitedHealthcare (“United”), UnitedHealthcare of California, Kaiser Permanente, Blue Shield of California, HMSA BlueCross BlueShield of Hawaii, and Harvard Pilgrim Health Care, formerly known as Tufts, all of which provide fully insured policies or service contracts.

Approximately 84% of our costs related to health insurance coverage are incurred under our policy with United. While the policy with United is a fully insured plan, as a result of certain contractual terms, we have accounted for this plan since its inception using a partially self-funded insurance accounting model. Effective January 1, 2020, under the amended agreement with United, we no longer have financial responsibilities for a participant’s annual claim costs that exceed $1 million (“Individual Claims Limit”). Accordingly, we record the cost of the United plan, including an estimate of the incurred claims, taxes and administrative fees (collectively the “Plan Costs”), as benefits expense, which is a component of direct costs, in our Consolidated Statements of Income. The estimated incurred but not reported claims are based upon: (1) the

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level of claims processed during each quarter; (2) estimated completion rates based upon recent claim development patterns under the plan; and (3) the number of participants in the plan, including both active and COBRA enrollees. Each reporting period, changes in the estimated ultimate costs resulting from claim trends, plan design and migration, participant demographics, and other factors are incorporated into the benefits costs, which requires a significant level of judgment.

Additionally, since the plan’s inception, under the terms of the contract, United establishes cash funding rates 90 days in advance of the beginning of a reporting quarter. If the Plan Costs for a reporting quarter are greater than the premiums paid and owed to United, a deficit in the plan would be incurred and a liability for the excess costs would be accrued in our Condensed Consolidated Balance Sheets. On the other hand, if the Plan Costs for the reporting quarter are less than the premiums paid and owed to United, a surplus in the plan would be incurred and we would record an asset for the excess premiums in our Condensed Consolidated Balance Sheets. The terms of the arrangement require us to maintain an accumulated cash surplus in the plan of $9 million, which is reported as long-term prepaid health insurance. In addition, United requires a deposit equal to approximately one day of claims funding activity, which was $7 million at September 30, 2025, and is included in deposits - health insurance as a long-term asset on our Condensed Consolidated Balance Sheets. As of September 30, 2025, Plan Costs were less than the net premiums paid and owed to United by $19 million, which is $10 million in excess of our agreed-upon $9 million surplus maintenance level. The $10 million difference is therefore reflected as a current asset and $9 million is reflected as a long-term asset on our Condensed Consolidated Balance Sheets at September 30, 2025. In addition, the premiums owed to United at September 30, 2025, were $26 million, which is included in accrued health insurance costs, a current liability, on our Condensed Consolidated Balance Sheets. Our benefits costs incurred in the first nine months of 2025 included an increase of $9 million for changes in estimated run-off related to prior periods, net of Individual Claims Limit. Our benefits costs incurred in the first nine months of 2024 included a decrease of $32 million for changes in estimated run-off related to prior periods, net of Individual Claims Limit.

Workers’ Compensation Costs

Our workers’ compensation coverage for our WSEEs in our PEO HR Solutions has been provided through arrangements with the Chubb Group of Insurance Companies or its predecessors (the “Chubb Program”) since 2007. The Chubb Program is fully insured in that Chubb has the responsibility to pay all claims incurred under the policy regardless of whether we satisfy our responsibilities. Under the Chubb Program, for claims incurred on or before September 30, 2019, we have financial responsibility to Chubb for the first $1 million layer of claims per occurrence and, for claims over $1 million, up to a maximum aggregate amount of $6 million per policy year for claims that exceed $1 million. Chubb bears the financial responsibility for all claims in excess of these levels. Effective for claims incurred on or after October 1, 2019, we have financial responsibility to Chubb for the first $1.5 million layer of claims per occurrence and, for claims over $1.5 million, up to a maximum aggregate amount of $6 million per policy year for claims that exceed $1.5 million.

Because we bear the financial responsibility for claims up to the levels noted above, such claims, which are the primary component of our workers’ compensation costs, are recorded in the period incurred. Workers’ compensation insurance includes ongoing health care and indemnity coverage whereby claims are paid over numerous years following the date of injury. Accordingly, the accrual of related incurred costs in each reporting period includes estimates, which take into account the ongoing development of claims and therefore requires a significant level of judgment.

We utilize a third-party actuary to estimate our loss development rate, which is primarily based upon the nature of WSEEs’ job responsibilities, the location of WSEEs, the historical frequency and severity of workers’ compensation claims, and an estimate of future cost trends. Each reporting period, changes in the actuarial assumptions resulting from changes in actual claims experience and other trends are incorporated into our workers’ compensation claims cost estimates. During the nine months ended September 30, 2025 and 2024, we reduced accrued workers’ compensation costs by $20 million and $25 million, respectively, for changes in estimated losses related to prior periods. Workers’ compensation cost estimates are discounted to present value at a rate based upon the U.S. Treasury rates that correspond with the weighted average estimated claim payout period (the average discount rate utilized was 4.0% in the 2025 period and 4.3% in the 2024 period) and are accreted over the estimated claim payment period and included as a component of direct costs in our Consolidated Statements of Income.

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The following table provides the activity and balances related to incurred but not paid workers’ compensation claims:

The current portion of accrued workers’ compensation costs on our Condensed Consolidated Balance Sheets at September 30, 2025 and 2024 includes $2 million and $3 million, respectively, of workers’ compensation administrative fees.

The undiscounted accrued workers’ compensation costs were $227 million as of September 30, 2025 and $242 million as of September 30, 2024.

At the beginning of each policy period, the workers’ compensation insurance carrier establishes monthly funding requirements comprised of premium costs and funds to be set aside for payment of future claims (“claim funds”). The level of claim funds is primarily based upon anticipated WSEE payroll levels and expected workers’ compensation loss rates, as determined by the insurance carrier. Monies funded into the program for incurred claims expected to be paid withinone year are primarily held as cash and money market funds (cash equivalents) and are recorded as restricted cash, a short-term asset, while the remainder of claim funds are included in deposits – workers’ compensation, a long-term asset in our Condensed Consolidated Balance Sheets. At September 30, 2025, we had restricted cash of $79 million and deposits – workers’ compensation of $147 million, of which $226 million was held in trust bank accounts.

Our estimate of incurred claim costs expected to be paid withinone year is included in short-term liabilities, while our estimate of incurred claim costs expected to be paid beyond one year is included in long-term liabilities on our Condensed Consolidated Balance Sheets.

Revenue and Direct Cost Recognition

We enter into contracts with our PEO HR Solutions customers for human resources services based on a stated rate and price in the contract. Our contracts generally establish pricing for a period of 12 months and are generally cancellable at any time by either party with 30-days’ notice. Our performance obligations are satisfied as services are rendered each month. The term between invoicing and when our performance obligations are satisfied is not significant. Our payment terms typically require payment concurrently with the invoicing of our PEO services. We do not have significant financing components or significant payment terms.

Our revenue is generally recognized ratably over the payroll period as WSEEs perform their service at the client worksite in accordance with Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers. Customers are invoiced concurrently with each periodic payroll of its WSEEs. Revenues that have been recognized but not invoiced represent unbilled accounts receivable of $882 million and $810 million at September 30, 2025 and December 31, 2024, respectively, and are included in accounts receivable, net on our Condensed Consolidated Balance Sheets.

Pursuant to the “practical expedients” provided under ASC 340-40, Other Assets and Deferred Costs - Contracts with Customers, we expense sales commissions when incurred because the terms of our contracts are cancellable by either party with a 30-day notice. These costs are recorded in commissions in our Consolidated Statements of Income.

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Our revenue for our PEO HR Solutions by geographic region and for our other products and services offerings are as follows:

Our PEO HR Solutions revenues are primarily derived from our gross billings, which are based on (1) the payroll cost of our WSEEs; and (2) a markup computed as a percentage of the payroll cost. The gross billings are invoiced concurrently with each periodic payroll of our WSEEs. Revenues, which exclude the payroll cost component of gross billings and therefore consist solely of the markup, are recognized ratably over the payroll period as WSEEs perform their service at the client worksite.

In determining the pricing of the markup component of our gross billings, we take into consideration our estimates of the costs directly associated with our WSEEs, including payroll taxes, benefits and workers’ compensation costs, plus an acceptable gross profit margin. As a result, our operating results are significantly impacted by our ability to accurately estimate our direct costs relative to the revenues derived from the markup component of our gross billings.

Revenues are comprised of gross billings less WSEE payroll costs as follows:

Consistent with our revenue recognition policy, our direct costs do not include the payroll cost of our WSEEs. Our direct costs associated with our revenue generating activities are primarily comprised of all other costs related to our WSEEs, such as the employer portion of payroll-related taxes, employee benefit plan premiums and workers’ compensation insurance costs.

Segment Reporting

ASC 280, Segment Reporting establishes standards for reporting information about operating segments on a basis consistent with our internal organizational structure as well as information about geographical areas and business segments. Based on management’s assessment, we determined that we have onlyone operating segment and thereforeone reportable segment, HR Solutions, as defined by ASC 280.

The accounting policies of the HR Solutions segment are the same as those described in the summary of significant accounting policies. The measure of segment assets is reported on our Condensed Consolidated Balance Sheets as total assets, and the chief operating decision maker (“CODM”) assesses performance and decides how to allocate resources based on net income as reported in our Consolidated Statements of Income.

The CODM reviews revenues and expenses at the consolidated level as disclosed in our Consolidated Statements of Income and uses net income to evaluate income generated from segment assets (return on assets) in deciding whether to reinvest profits into our HR Solutions segment or into other areas of the entity, such as for acquisitions or to pay dividends.

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Net income is also used to monitor budget versus actual results and in competitive analysis by benchmarking to our competitors. The competitive analysis and the monitoring of budgeted versus actual results are used in assessing the segment’s performance and in establishing management’s compensation.

Cash, Cash Equivalents and Marketable Securities

The following table summarizes our cash and investments in cash equivalents and marketable securities held by investment managers and overnight investments:

Our cash and overnight holdings fluctuate based on the timing of clients’ payroll processing cycles. Our cash, cash equivalents and marketable securities at September 30, 2025 and December 31, 2024 included $284 million and $830 million, respectively, of funds associated with federal and state income tax withholdings, employment taxes, and other payroll deductions, as well as $36 million and $91 million, respectively, in client prepayments. In addition, $440 million of client employee retention tax credits received on their behalf from the Internal Revenue Service during the fourth quarter of 2024 were distributed to clients in early 2025.

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Cash, Cash Equivalents, Restricted Cash, Funds Held for Clients, and Deposits - Workers’ Compensation

The following table summarizes our cash, cash equivalents, restricted cash, funds held for clients, and deposits - workers’ compensation as reported in our Consolidated Statements of Cash Flows:

(1)Funds held for clients represent amounts held on behalf of our Traditional HR Solution customers that are restricted for the purpose of satisfying obligations to remit funds to clients’ employees and various tax authorities.

Please read Note 2. “Accounting Policies,” for a discussion of our accounting policies for deposits – workers’ compensation and restricted cash.

We account for our financial assets in accordance with ASC 820, Fair Value Measurement. This standard defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. The fair value measurement disclosures are grouped into three levels based on valuation factors:

•Level 1 - quoted prices in active markets using identical assets

•Level 2 - significant other observable inputs, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other observable inputs

•Level 3 - significant unobservable inputs

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Fair Value of Instruments Measured and Recognized at Fair Value

The following table summarizes the levels of fair value measurements of our financial assets:

Please read Note 3. “Other Balance Sheet Information,” for additional information.

Our valuation techniques used to measure fair value for these securities during the period consisted primarily of third-party pricing services that utilized actual market data such as trades of comparable bond issues, broker/dealer quotations for the same or similar investments in active markets and other observable inputs.

The following is a summary of our available-for-sale marketable securities:

As of September 30, 2025, the contractual maturities of all marketable securities in our portfolio were less than one year.

Fair Value of Other Financial Instruments

The carrying amounts of cash, cash equivalents, restricted cash, accounts receivable, deposits and accounts payable approximate their fair values due to the short-term maturities of these instruments.

As of September 30, 2025, the carrying value of borrowings under our revolving credit facility approximates fair value and was classified as Level 2 in the fair value hierarchy. Please read Note 5, “Long-Term Debt,” for additional information.