Exhibit 99.1 Insperity Announces First Quarter Results HOUSTON – May 1, 2024 – Insperity, Inc. (NYSE: NSP), a leading provider of human resources and business performance solutions for America's best businesses, today reported results for the first quarter ended March 31, 2024. Insperity will be hosting a conference call today at 8:30 a.m. ET to discuss these results and our updated 2024 outlook and will be posting an accompanying presentation to its investor website at http://ir.insperity.com. First Quarte ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ Commission File No. 1-13998 Insperity, Inc. (Exact name of registrant as specified in its charter) Delaware 76-0479645 (State or o ...

Financial Data and Key Metrics Changes - In Q4 2023, the company achieved an adjusted EPS of $0.75 and adjusted EBITDA of $56 million, both exceeding expectations [4] - Operating expenses increased by 5% compared to Q4 of the prior year, aligning with forecasts [5] - The effective income tax rate for Q4 was 19%, positively influenced by lower state taxes and R&D tax credits [5] - The company ended 2023 with $171 million in adjusted cash and $370 million outstanding under its credit facility [6] Business Line Data and Key Metrics Changes - Gross profit per worksite employee per month was $277 in 2023, slightly below budget despite elevated healthcare costs [22] - Operating expenses rose by 7.5% over 2022, reflecting investments in long-term growth plans and a 12% increase in Business Performance Advisors [22] Market Data and Key Metrics Changes - The company experienced a net reduction in employees within its client base during the second half of 2023, continuing into January 2024, which affected growth rates [31] - The forecast for worksite employee growth in Q1 2024 is a decline of 1% to flat, with an expected growth of 2% to 3% for the full year [32] Company Strategy and Development Direction - The strategic partnership with Workday aims to develop a combined solution for small and mid-sized businesses, enhancing the company's market position [105] - The partnership is expected to improve new sales, client retention, and pricing strategies, with an investment of approximately $150 million over five years [112] - The company plans to maintain its existing technology for smaller clients while integrating Workday's solutions for larger clients [84] Management's Comments on Operating Environment and Future Outlook - Management noted that macroeconomic headwinds have impacted hiring and client retention, with a current annual retention rate of 83% [103] - The company anticipates that the strategic partnership will enhance its ability to retain larger clients and improve overall sales opportunities [110] - Management expressed confidence in the long-term growth potential stemming from the partnership, despite short-term impacts on adjusted EBITDA and earnings per share [15][113] Other Important Information - The company plans to hold an Investor and Analyst Day in May 2024 to discuss the strategic partnership and its implications [35] - The partnership with Workday is exclusive within the PEO industry for at least five years, providing a competitive advantage [11] Q&A Session Summary Question: What is the timeline for marketing and installing the joint venture with Workday? - Management indicated that while specific timelines are not locked down, they expect to have more information by the Investor and Analyst Day in May, with a likely launch within a year [43][46] Question: How will the partnership affect mid-market business? - Management does not foresee cannibalization of mid-market business; instead, they believe it will enhance client retention and revenue as clients transition to the new solution [59][61] Question: What is the expected impact of healthcare trends on pricing? - Management expects a trend of 4.5% to 6% in healthcare costs, with a focus on maintaining pricing alignment with direct costs [70][99] Question: Will clients have the option to use the traditional Workforce Optimization versus the combined offering with Workday? - Clients will have the opportunity to utilize both solutions, with the new offering providing enhanced technology and HR service experience [73][75]

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ Commission File No. 1-13998 Insperity, Inc. (Exact name of registrant as specified in its charter) Delaware 76-0479645 (State or other jurisdiction of incorporation or (I.R.S. Employer Identification No.) (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Exact name of registrant as specified in its charter) FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ Commission File No. 1-13998 Insperity, Inc. Delaware 76-0479645 (I.R. ...

Safe Harbor Statement Supplement to Earnings Release Non-GAAP Financial Measures CEO Commentary • New Strategic Planning and Development Organization focused on purposeful transformation in a changing HR environment, from data analytics and artificial intelligence to employee generational and psychological needs for flexibility and personal wellness support. • When we look into next year and beyond, we believe that we will be able to appropriately align our pricing strategy to our cost trends over time as w ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 19001 Crescent Springs Drive Kingwood, Texas 77339 (Address of principal executive offices) (Exact name of registrant as specified in its charter) or Delaware 76-0479645 (State or other jurisdiction of incorporation or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition ...

Financial Data and Key Metrics Changes - The company reported a 29% increase in adjusted EBITDA year-over-year to $152 million and a 34% increase in adjusted earnings per share to $2.67 [4][25] - Gross profit increased by 16% compared to Q1 of the prior year, driven by a 10% growth in worksite employees and strong pricing [5][25] - Operating expenses rose by 13%, including an 11% increase in the average number of hired Business Performance Advisors [16][25] - The effective tax rate for Q1 was 23.5%, lower than the expected full-year rate due to tax benefits from employee stock awards [17] Business Line Data and Key Metrics Changes - The average number of paid worksite employees increased by 10% year-over-year, aligning with company forecasts [15][25] - New booked workforce optimization sales were below budget, reflecting a degree of hesitation in decision-making among clients [44] - Workforce Acceleration sales increased by 36% year-over-year, indicating a strong focus from the sales organization on this offering [47] Market Data and Key Metrics Changes - Internal data indicated a slowdown in the economy, with average pay increases dropping below 4% and overtime pay as a percentage of total payroll falling below 10% [10] - The National Federation of Independent Businesses reported a decline in optimism, with expectations of negative impacts from the economic climate rising from less than 10% to over 20% [20] Company Strategy and Development Direction - The company plans to continue investing in marketing and technology to drive growth, with a focus on increasing the number of Business Performance Advisors [12][25] - The company is refining its forecast for worksite employee growth to 7% to 9% for the full year 2023, down from the initial guidance of 7.5% to 10.5% [25] - The company aims to leverage its Workforce Acceleration offering to enhance sales efficiency and client retention [23][47] Management's Comments on Operating Environment and Future Outlook - Management acknowledged challenges in the small to medium-sized business community due to inflation, rising borrowing costs, and economic uncertainty [9][19] - Despite these challenges, management expressed confidence in achieving solid growth and profitability due to strong pricing and a focus on increasing sales opportunities [33][48] - The company remains on track to meet and exceed its five-year planning objectives, even in a challenging economic environment [48] Other Important Information - The company repurchased 289,000 shares at a cost of $35 million and paid out $20 million in cash dividends during Q1 [7] - The company ended Q1 with $231 million in adjusted cash and $370 million in debt [7] Q&A Session Summary Question: Impact of financial turmoil on California market - Management noted a hesitation in decision-making due to financial market issues, describing it as a brief shock effect rather than a long-term trend [56][57] Question: Changes in hiring trends throughout the quarter - Management observed a significantly reduced hiring rate compared to the previous year, with expectations of continued slowdown [58][60] Question: Strong pricing trend attribution - Management emphasized the importance of strong pricing in an inflationary environment, which was a focus throughout the previous year [61] Question: Salesforce productivity measures and sales force adjustments - Management indicated that increasing sales staff may initially drag on metrics, but they believe the current strategies will drive long-term improvements [62] Question: Healthcare benefit cost trends - Management expects benefit costs to trend slightly above expectations but noted that pricing has been favorable, offsetting some of the increases [65]

CEO Commentary These strong results were against a backdrop of a changing dynamic in the marketplace due to persistent inflation, rising borrowing costs, a weakening economy, and an elevated uncertainty in the small and medium-size business community. Average Paid Worksite Employees 152,413 118,573 Q1 23 Q1 22 28.5% Non-GAAP Financial Measures This presentation contains non-GAAP financial measures, such as Adjusted EBITDA and Adjusted EPS. Please see the Appendix for a further discussion. Q1 2023 earnings a ...

Business Operations - As of December 31, 2022, the company serviced an average of 307,506 worksite employees (WSEEs) per month in the fourth quarter[14] - The company operates 74 physical office locations across 43 markets, with multiple sales offices sharing physical locations to enhance economic efficiencies[14] - The company aims to serve approximately 10% of the overall small and medium-sized business community in terms of WSEEs[48] - As of December 31, 2022, the company operated 92 sales offices across 43 markets, employing a systematic market evaluation and selection process[54] - The company has a corporate headquarters in Kingwood, Texas, with a 33-acre campus that includes 700,000 square feet of office space[146] Services Offered - The PEO HR Outsourcing Solutions are designed to improve productivity and profitability for small and medium-sized businesses, relieving them of many employer-related administrative burdens[11] - The comprehensive service fee charged by the company consists of the payroll of WSEEs plus an additional percentage of the payroll cost[12] - The company’s Insperity Premier platform provides cloud-based human capital management solutions, offering role-based access to various HR functions[25] - The company offers a range of employee benefits, including health insurance, retirement plans, and employee well-being programs, which are typically not available to small and medium-sized businesses[24] - The company’s Workforce Optimization solution includes services such as payroll administration, employee performance management, and compliance assistance[20] Industry Context - The PEO industry is driven by the need for small and medium-sized businesses to focus on growth and productivity while managing complex regulatory environments[17] - The PEO industry is highly fragmented, with significant competition from traditional in-house HR services and other PEOs, but the company is one of the largest PEO service providers in the U.S.[60] - The company is subject to numerous federal, state, and local laws affecting its PEO HR Outsourcing Solutions, with 42 states having passed laws recognizing PEOs[68] - The company faces competition from large business services companies and national PEOs, which may offer lower-priced services, impacting growth and profitability[128] Financial Performance - Revenues for 2022 were $5.9 billion, an increase of 19.4% compared to $4.97 billion in 2021[204] - Net income rose 44.5% to $179.4 million, while diluted earnings per share increased 45.9% to $4.64[173] - Adjusted net income increased by 40.2% to $215.9 million in 2022[180] - Gross profit increased 23.3% to $1.0 billion, driven by the 17.7% growth in average WSEEs paid per month and a 4.8% increase in gross profit per WSEE[173] - Operating income for 2022 was $250.2 million, a 44.4% increase from $173.3 million in 2021[204] Client Retention and Growth - The client retention rate improved to approximately 85% in 2022 from 82% in 2021, with an average annual retention rate of 84% over the last five years[53] - The average number of clients with over 1,000 paid WSEEs increased from 1.9% in 2021 to 5.4% in 2022[31] - Average number of WSEEs paid from new client sales increased by 16.4% in 2022, with average client retention improving from 82% in 2021 to 85% in 2022[207] Regulatory and Compliance - The Small Business Efficiency Act (SBEA) established a federal regulatory framework for PEOs, clarifying employer responsibilities for payroll tax reporting[19] - The company has actively supported regulatory efforts that promote the PEO industry and protect clients and employees, with 42 states enacting relevant legislation[18] - The company assumes responsibility for federal and state employment taxes for wages paid to WSEEs, which includes obligations under various tax codes[72] - The company is subject to covenants under its credit facility that may restrict business activities, with potential adverse effects on liquidity if covenants are not met[98] Economic and Market Conditions - The company’s operations are significantly impacted by economic conditions, with potential adverse effects on demand for outsourced HR services during economic downturns[85] - Labor shortages and increased competition for skilled workers have led to higher turnover rates and could adversely affect the company's growth plans and client service delivery[95] - Inflationary pressures have increased operating costs, which may not be fully offset by price increases due to fixed client agreements, potentially reducing profitability[96] - The COVID-19 pandemic has created significant volatility and uncertainty, with ongoing risks to business operations and financial results[86] Insurance and Liability - The company maintains employment practice liability insurance to manage exposure to employee-related claims, with historically insignificant incurred costs exceeding annual premiums[45] - The company has a 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 the first $1 million[114] - The company assumes liability for WSEE payroll and related costs, which could materially impact financial condition if clients fail to pay[101] - Health insurance costs are a significant portion of direct costs, and unexpected increases in claims could adversely affect profitability[104] Strategic Initiatives - The company has implemented a dual channel sales process, allowing BPAs to offer both PEO HR Outsourcing Solutions and Workforce Acceleration, increasing client acquisition opportunities[57] - The company has adopted a strategy to market and sell additional solutions, which involves risks such as entering highly regulated markets and potential over-valuation of targeted businesses[141] - The company is currently working on a multi-year project to replace its sales force automation and CRM systems, which is critical for maintaining service quality[132] Employee Metrics - The average number of trained BPAs increased to 601 in 2022 from 596 in 2021, indicating a slight improvement in training effectiveness[80] - The staff support ratio averaged 55% higher than the PEO industry average from 2019 to 2021, with gross profit per WSEE exceeding industry averages by 144% and operating income per WSEE by 223% during the same period[58] Future Outlook - The company expects the average number of paid WSEEs per month to be between 317,000 and 326,000 for the full year 2023, representing a growth of 7.5% to 10.5%[173] - The company is unable to determine the effect of the repeal of pending excise taxes on its business, which could impact client attraction and retention[109]