SHARP DOUGLAS S

SEC source: 0001127602-24-015002 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,516

F1 · price: Weighted average price. Actual prices ranged from $104.39 to $104.80. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-24-008226 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,728

F2 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-24-008226 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,137

F1 · kind: Payment of tax liability by withholding securities incident to the settlement of the three-year performance period awards that were granted under the Long-Term Incentive Plan, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-24-007957 · form4.xml · nonDerivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,902

F3 · kind: Award of restricted stock units pursuant to the Insperity, Inc. Incentive Plan, as amended and restated. Units vest in annual increments of one-third beginning on the first anniversary of the award. Each restricted stock unit represents a right to receive one share of Common Stock upon vesting.

SEC source: 0001127602-24-007957 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,127

F2 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of common stock of Insperity, Inc. ("Common Stock") based on the fair market value of the Common Stock on the dividend payable dates. Fractional amounts have been rounded to the nearest whole number.

SEC source: 0001127602-24-007957 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,782

F1 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock unit award.

SEC source: 0001127602-24-006352 · form4.xml · derivative · entry 4

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,730

Underlying: Common Stock · 7,396 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F1 · date: On this date, the Compensation Committee certified the achievement of the final performance conditions for these three-year performance period awards granted in 2021. These shares of Insperity, Inc. common stock ("Common Stock") will be settled as soon as practicable.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-24-006352 · form4.xml · derivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,126

Underlying: Common Stock · 602 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F6 · date: These three-year performance period awards were granted in 2023. The Compensation Committee certified the achievement of the performance conditions related to 2023 performance on this date.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-24-006352 · form4.xml · derivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,524

Underlying: Common Stock · 2,324 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F4 · date: These three-year performance period awards were granted in 2021. The Compensation Committee certified the achievement of the relative total shareholder return performance of Insperity's Common Stock against the performance of Insperity's 2021 compensation peer group of companies on this date. No further performance periods remain for this grant.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-24-006352 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,411

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · date: On this date, the Compensation Committee certified the achievement of the final performance conditions for these three-year performance period awards granted in 2021. These shares of Insperity, Inc. common stock ("Common Stock") will be settled as soon as practicable.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

SEC source: 0001127602-23-014341 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,015

F1 · price: Weighted average price. Actual prices ranged from $123.63 to $123.92. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-23-009152 · form4.xml · nonDerivative · entry 4

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,174

F1 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-23-009152 · form4.xml · nonDerivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,002

F2 · kind: Payment of tax liability by withholding securities incident to the settlement of the three-year performance period awards that were granted under the Long-Term Incentive Plan, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-23-009152 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,207

F2 · kind: Payment of tax liability by withholding securities incident to the settlement of the three-year performance period awards that were granted under the Long-Term Incentive Plan, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-23-009152 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,832

F1 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-23-008490 · form4.xml · nonDerivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,457

F3 · kind: Award of restricted stock units pursuant to the Insperity, Inc. 2012 Incentive Plan, as amended and restated. Units vest in annual increments of one-third beginning on the first anniversary of the award. Each restricted stock unit represents a right to receive one share of Common Stock upon vesting.

SEC source: 0001127602-23-008490 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,697

F2 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of common stock of Insperity, Inc. ("Common Stock") based on the fair market value of the Common Stock on the dividend payable dates.

SEC source: 0001127602-23-008490 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,232

F1 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock unit award.

SEC source: 0001127602-23-007155 · form4.xml · derivative · entry 6

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,200

Underlying: Common Stock · 9,182 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F1 · date: On this date, the Compensation Committee certified the achievement of the final performance conditions for these three-year performance period awards granted in 2020. These shares of Insperity, Inc. common stock ("Common Stock") will be settled as soon as practicable.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-23-007155 · form4.xml · derivative · entry 5

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,382

Underlying: Common Stock · 3,128 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F8 · date: These three-year performance period awards were granted in 2022. The Compensation Committee certified the achievement of the performance conditions related to 2022 performance on this date.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-23-007155 · form4.xml · derivative · entry 4

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,254

Underlying: Common Stock · 3,170 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F7 · date: These three-year performance period awards were granted in 2021. The Compensation Committee certified the achievement of the performance conditions related to 2022 performance on this date.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-23-007155 · form4.xml · derivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,084

Underlying: Common Stock · 2,613 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F6 · date: These three-year performance period awards were granted in 2020. The Compensation Committee certified the achievement of the relative total shareholder return performance of Insperity's Common Stock against the performance of Insperity's 2020 compensation peer group of companies on this date. No further performance periods remain for this grant.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-23-007155 · form4.xml · derivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,471

Underlying: Common Stock · 2,889 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the "LTIP") awards issued under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F4 · date: These three-year performance period awards were granted in 2020. The Compensation Committee certified the achievement of the performance conditions related to 2022 performance on this date. No further performance periods remain for this grant.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F5 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F5 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-23-007155 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,615

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · date: On this date, the Compensation Committee certified the achievement of the final performance conditions for these three-year performance period awards granted in 2020. These shares of Insperity, Inc. common stock ("Common Stock") will be settled as soon as practicable.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

SEC source: 0001127602-22-025471 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,433

F1 · price: Weighted average price. Actual prices ranged from $113.32 to $114.14. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-22-020967 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · EVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,489

F1 · price: Weighted average price. Actual prices ranged from $111.55 to $111.78. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-22-013195 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,291

F1 · price: Weighted average price. Actual prices ranged from $105.05 to $105.54. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-22-008278 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,293

F2 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock unit award.

SEC source: 0001127602-22-008278 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,347

F1 · kind: The number of share represents the cash value of dividend rights that were settled in shares of common stock of Insperity, Inc. ("Common Stock") based on the fair market value of the Common Stock on the dividend payable dates.

SEC source: 0001127602-22-007850 · form4.xml · nonDerivative · entry 4

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,253

F4 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock unit award.

SEC source: 0001127602-22-007850 · form4.xml · nonDerivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,513

F3 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Common Stock based on the fair market value of the common stock on the dividend payable dates.

SEC source: 0001127602-22-007850 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,312

F2 · kind: Award of restricted stock units pursuant to the Insperity, Inc. 2012 Incentive Plan, as amended and restated. Units vest in annual increments of one-third beginning on the first anniversary of the award. Each restricted stock unit represents a right to receive one share of Insperity, Inc. common stock ("Common Stock") upon vesting.

SEC source: 0001127602-22-007850 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,667

F1 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock award.

SEC source: 0001127602-22-007850 · form4.xml · derivative · entry 5

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,582

Underlying: Common Stock · 1,902 shares

Expires not disclosed

F5 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the LTIP under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F6 · date: These three-year performance period awards were granted in 2021. The Compensation Committee certified the achievement of the performance conditions related to 2021 performance on this date.

F7 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F8 · derivative.exercise_date: The phantom stock performance units vest at the end of the three-year award cycle period for LTIP awards following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

F8 · derivative.expiration_date: The phantom stock performance units vest at the end of the three-year award cycle period for LTIP awards following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.

SEC source: 0001127602-21-028598 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,148

SEC source: 0001127602-21-028598 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,462

F1 · price: Weighted average price. Actual prices ranged from $123.00 to $123.60. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-21-018493 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,621

F1 · price: Weighted average price. Actual prices ranged from $93.60 to $93.74. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-21-009944 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,829

F1 · price: Weighted average price. Actual prices ranged from $89.04 to $89.13. Full information regarding the number of shares sold at each separate price will be provided upon request to the SEC's staff, Insperity, Inc. or its stockholders.

SEC source: 0001127602-21-009541 · form4.xml · nonDerivative · entry 4

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,748

F2 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-21-009541 · form4.xml · nonDerivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,671

F1 · kind: Payment of tax liability by withholding securities incident to the settlement of the one-year performance period awards that were granted under the Insperity, Inc. 2012 Incentive Plan, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-21-009541 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,051

F2 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-21-009541 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,853

F1 · kind: Payment of tax liability by withholding securities incident to the settlement of the one-year performance period awards that were granted under the Insperity, Inc. 2012 Incentive Plan, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-21-009217 · form4.xml · nonDerivative · entry 6

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,269

F3 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-21-009217 · form4.xml · nonDerivative · entry 5

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,892

F5 · kind: Payment of tax liability by withholding securities incident to the settlement of the three-year performance period awards that were granted under the Long-Term Incentive Plan, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-21-009217 · form4.xml · nonDerivative · entry 4

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,678

F4 · kind: Award of restricted stock units pursuant to the Insperity, Inc. 2012 Incentive Plan, as amended and restated. Units vest in annual increments of one-third beginning on the first anniversary of the award. Each restricted stock unit represents a right to receive one share of Insperity, Inc. common stock upon vesting.

SEC source: 0001127602-21-009217 · form4.xml · nonDerivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,928

F3 · kind: The number of shares represents the cash value of dividend rights that were settled in shares of Insperity, Inc. common stock based on the fair market value of the common stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-21-009217 · form4.xml · nonDerivative · entry 2

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,873

F2 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock unit award.

SEC source: 0001127602-21-009217 · form4.xml · nonDerivative · entry 1

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,617

F1 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock award.

SEC source: 0001127602-21-007995 · form4.xml · nonDerivative · entry 3

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,006

SEC source: 0001127602-21-007995 · form4.xml · derivative · entry 9

SHARP DOUGLAS S · CIK 0001198988 · SVP Finance, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,680

Underlying: Common Stock · 19,533 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Plan (the "LTIP") and short-term awards issued under the Insperity, Inc. 2012 Incentive Plan based on the applicable three-year or one-year performance period award cycle, respectively.

F3 · date: On this date, the Compensation Committee certified the achievement of the final performance conditions for these one-year performance period awards granted in 2020. These shares of Common Stock will be settled as soon as practicable.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights that will be settled in shares of Common Stock. The value of these dividend rights will be based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date following the certification of the final performance conditions.

F6 · derivative.exercise_date: These phantom stock performance units vest at the end of the three-year award cycle period for LTIP awards or at the end of a one-year award cycle period for short-term awards following certification in accordance with the LTIP or short-term awards of the achievement of all performance goals for the performance periods applicable to such award.

F6 · derivative.expiration_date: These phantom stock performance units vest at the end of the three-year award cycle period for LTIP awards or at the end of a one-year award cycle period for short-term awards following certification in accordance with the LTIP or short-term awards of the achievement of all performance goals for the performance periods applicable to such award.