Company: NSP
Filing Date: 2025-04-15
Form Type: DEF 14A
Source: 0001000753-25-000013
Chunk: 2

Company: INSPERITY, INC.
Filing Date: 2025-04-15
Form: DEF 14A
Chunk 2
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     | 52 |
| Proposal Number2                                                                                  |     | 53 |
| Proposal Number 3                                                                                 |     | 55 |
| Proposal Number4                                                                                  |     | 63 |
| General                                                                                           |     | 63 |
| Fees of Ernst & Young                                                                             |     | 63 |
| Finance, Risk Management and Audit Committee Pre-Approval Policy for Audit and Non-Audit Services |     | 63 |
| Required Affirmative Vote                                                                         |     | 63 |
| Additional Information                                                                            |     | 64 |
| Delivery of Proxy Statement                                                                       |     | 64 |
| Stockholder Proposals and Director Nominations for 2025 Annual Meeting of Stockholders            |     | 64 |
| Stockholder Proposals for Inclusion in Our 2026 Proxy Statement                                   |     | 64 |
| Stockholder Director Nominations and Proposals for 2026 Annual Meeting of Stockholders            |     | 64 |
| Financial Information                                                                             |     | 65 |
| Appendix A - Insperity, Inc. Incentive Plan                                                       |     |    |
| AppendixB-First Amendment to the Insperity, Inc. Incentive Plan                                   |     |    |

#### INSPERITY, INC.

### PROXY STATEMENT

### SOLICITATION
The accompanying proxy is solicited by the Board of Directors, or Board, of Insperity, Inc., a Delaware corporation, for use at the 2025 Annual Meeting of Stockholders to be held on May 20, 2025, and at any reconvened meeting after an adjournment thereof. The 2025 Annual Meeting of Stockholders will be held at 1:30 p.m. (Houston, Texas time), in the Auditorium in Centre I of our corporate headquarters at 19001 Crescent Springs Drive, Kingwood, Texas 77339. The approximate date on which this proxy statement and the accompanying proxy card will first be sent to stockholders is April 15, 2025.

### QUESTIONS AND ANSWERS ABOUT VOTING AND THE ANNUAL MEETING

#### Why am I receiving these materials?
We are providing these proxy materials to holders of shares of our common stock in connection with the solicitation of proxies by the Board to vote at the 2025 Annual Meeting of Stockholders, and at any adjournment(s) or postponement(s) thereof.

When and where is the 2025 Annual Meeting of Stockholders?

Our 202