SHARP DOUGLAS S

SEC source: 0001127602-21-007995 · form4.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,213

Underlying: Common Stock · 19,533 shares

Expires not disclosed

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.

F9 · date: These one-year performance period awards were granted in 2020. The Compensation Committee certified the achievement of the performance conditions related to 2020 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.

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.

SEC source: 0001127602-21-007995 · form4.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,680

Underlying: Common Stock · 9,459 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.

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 2018. 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.

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.

SEC source: 0001127602-21-007995 · form4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,139

Underlying: Common Stock · 3,680 shares

Expires not disclosed

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.

F8 · date: These three-year performance period awards were granted in 2020. The Compensation Committee certified the achievement of the performance conditions related to 2020 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.

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.

SEC source: 0001127602-21-007995 · form4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,459

Underlying: Common Stock · 1,794 shares

Expires not disclosed

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.

F7 · date: These three-year performance period awards were granted in 2018. The Compensation Committee certified the achievement of the relative total shareholder return performance of Insperity's Common Stock against the performance of Insperity's 2018 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.

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.

SEC source: 0001127602-21-007995 · form4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,665

Underlying: Common Stock · 2,152 shares

Expires not disclosed

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.

F5 · date: These three-year performance period awards were granted in 2018. The Compensation Committee certified the achievement of the performance conditions related to 2020 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.

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.

SEC source: 0001127602-21-007995 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,006

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 · 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.

SEC source: 0001127602-21-007995 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,473

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 2018. 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: 0001127602-21-007643 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,014

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

SEC source: 0001127602-20-028478 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,609

F1 · price: Weighted average price. Actual prices ranged from $89.05 to $89.22. 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: 0001127602-20-028255 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,633

SEC source: 0001127602-20-023251 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,744

F2 · price: Weighted average price. Actual prices ranged from $69.23 to $69.98. 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: 0001127602-20-023251 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,043

F1 · price: Weighted average price. Actual prices ranged from $68.07 to $68.94. 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: 0001127602-20-009032 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,205

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 upon vesting.

SEC source: 0001127602-20-009032 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,210

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

SEC source: 0001127602-20-007633 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,839

F3 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock award and the settlement of the three-year performance period awards that were granted under the LTIP, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-20-007633 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,421

F1 · date: This is the settlement date for shares of Insperity, Inc. ("Common Stock") that are being issued in connection with dividend rights earned following final certification of the three-year performance period awards granted in 2017 in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan.

F2 · shares: The number of shares represents the cash value of dividend rights described above that were settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-20-006679 · form4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,513

Underlying: Common Stock · 15,209 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 LTIP under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F1 · date: These shares of Insperity, Inc. common stock ("Common Stock") will be settled following the certification by the Compensation Committee on this date of the achievement of the final performance conditions for these three-year performance period awards granted in 2017.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights in the amount of $3.58 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

F6 · derivative.exercise_date: The 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.

F6 · derivative.expiration_date: The 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.

F7 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-20-006679 · form4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,722

Underlying: Common Stock · 2,758 shares

Expires not disclosed

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 LTIP under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F9 · date: These three-year performance period awards were granted in 2018. The Compensation Committee certified the achievement of the performance conditions related to 2019 performance on this date.

F7 · shares: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

F6 · derivative.exercise_date: The 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.

F6 · derivative.expiration_date: The 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.

F7 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-20-006679 · form4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,964

Underlying: Common Stock · 4,401 shares

Expires not disclosed

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 LTIP 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 2017. The Compensation Committee certified the achievement of the relative total shareholder return performance of Insperity's Common Stock against the performance of Insperity's 2017 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 in the amount of $3.58 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

F6 · derivative.exercise_date: The 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.

F6 · derivative.expiration_date: The 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.

F7 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-20-006679 · form4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,563

Underlying: Common Stock · 3,608 shares

Expires not disclosed

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 LTIP under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F5 · date: These three-year performance period awards were granted in 2017. The Compensation Committee certified the achievement of the performance conditions related to 2019 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 in the amount of $3.58 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

F6 · derivative.exercise_date: The 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.

F6 · derivative.expiration_date: The 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.

F7 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-20-006679 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,672

F3 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock award.

SEC source: 0001127602-20-006679 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,472

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: These shares of Insperity, Inc. common stock ("Common Stock") will be settled following the certification by the Compensation Committee on this date of the achievement of the final performance conditions for these three-year performance period awards granted in 2017.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights in the amount of $3.58 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately preceding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

SEC source: 0001127602-19-024525 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,263

F1 · kind: The sale reported on this Form 4 was effected pursuant to a limit order placed by the reporting person during an open window period.

SEC source: 0001127602-19-017438 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,263

F1 · price: Weighted average price. Actual prices ranged from $118.68 to $120.76. 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: 0001127602-19-014148 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,785

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

SEC source: 0001127602-19-009650 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,512

F1 · kind: Restricted stock award pursuant to the Insperity, Inc. 2012 Incentive Plan.

SEC source: 0001127602-19-008112 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,722

F3 · kind: Payment of tax liability by withholding securities incident to the vesting of a restricted stock award and the settlement of the three-year performance period awards that were granted under the LTIP, following the recent final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-19-008112 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,737

F1 · date: This is the settlement date for shares of Insperity, Inc. ("Common Stock") that are being issued in connection with dividend rights earned following final certification of the three-year performance period awards granted in 2016 in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan.

F2 · shares: The number of shares represents the cash value of dividend rights described above that were settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately preceding the settlement date.

SEC source: 0001127602-19-007211 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,263

F2 · price: Weighted average price. Actual prices ranged from $130.04 to $130.06. 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: 0001127602-19-007211 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,622

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

SEC source: 0001127602-19-006126 · form4.xml · derivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,955

Underlying: Common Stock · 21,986 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 LTIP under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F1 · date: These shares of Insperity, Inc. common stock ("Common Stock") will be settled following the certification by the Compensation Committee on this date of the achievement of the final performance conditions for these three-year performance period awards granted in 2016.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights in the amount of $2.75 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately proceeding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

F5 · derivative.exercise_date: The 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: The 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.

F6 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-19-006126 · form4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,941

Underlying: Common Stock · 2,756 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 LTIP under the Insperity, Inc. 2012 Incentive Plan based on a three-year performance period award cycle.

F9 · date: These three-year performance period awards were granted in 2018. The Compensation Committee certified the achievement of the performance conditions related to 2018 performance on this date.

F6 · shares: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

F5 · derivative.exercise_date: The 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: The 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.

F6 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-19-006126 · form4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,185

Underlying: Common Stock · 3,600 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 LTIP 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 2017. The Compensation Committee certified the achievement of the performance conditions related to 2018 performance on this date.

F6 · shares: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

F5 · derivative.exercise_date: The 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: The 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.

F6 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-19-006126 · form4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,585

Underlying: Common Stock · 10,528 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 LTIP 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 2016. The Compensation Committee certified the achievement of the relative total shareholder return performance of Insperity's Common Stock against the performance of Insperity's 2016 compensation peer group of companies. 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 in the amount of $2.75 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately proceeding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

F5 · derivative.exercise_date: The 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: The 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.

F6 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-19-006126 · form4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,057

Underlying: Common Stock · 5,263 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 LTIP 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 2016. The Compensation Committee certified the achievement of the performance conditions related to 2018 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 in the amount of $2.75 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately proceeding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

F5 · derivative.exercise_date: The 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: The 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.

F6 · balance_after: The number of shares does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-19-006126 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,407

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: These shares of Insperity, Inc. common stock ("Common Stock") will be settled following the certification by the Compensation Committee on this date of the achievement of the final performance conditions for these three-year performance period awards granted in 2016.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights in the amount of $2.75 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately proceeding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

SEC source: 0001127602-19-006126 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,421

SEC source: 0001127602-18-026212 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,967

SEC source: 0001127602-18-024996 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,790

SEC source: 0001127602-18-020162 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,955

F1 · price: Weighted average price. Actual prices ranged from $95.30 to $95.33. 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: 0001127602-18-017116 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,955

F1 · price: Weighted average price. Actual prices ranged from $84.00 to $84.90. 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: 0001127602-18-011411 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,955

SEC source: 0001127602-18-010154 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,955

F3 · kind: Payment of tax liability by withholding securities incident to the settlement of the three-year performance period awards that were granted in 2015 under the LTIP, following final certification of the achievement of the performance conditions by the Compensation Committee.

SEC source: 0001127602-18-010154 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,764

F1 · date: This is the settlement date for shares of Insperity, Inc. ("Common Stock") that are being issued in connection with dividend rights earned following final certification of the three-year performance period awards granted in 2015 in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan.

F2 · shares: 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 trading day immediately preceding the settlement date.

SEC source: 0001127602-18-008107 · form4.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,794

Underlying: Common Stock · 19,268 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 LTIP based on a three-year performance period award cycle.

F1 · date: These shares of Insperity, Inc. common stock ("Common Stock") will be settled following the certification by the Compensation Committee on this date of the achievement of the final performance conditions for these three-year performance period awards granted in 2015.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights in the amount of $2.39 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately proceeding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.

F7 · derivative.exercise_date: The 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.

F7 · derivative.expiration_date: The 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.

F6 · balance_after: The number of shares (a) includes additional shares issued in connection with the Company's 2-for-1 stock split, which was completed on December 18, 2017, and (b) does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-18-008107 · form4.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,062

Underlying: Common Stock · 7,068 shares

Expires not disclosed

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 LTIP based on a three-year performance period award cycle.

F9 · date: These three-year performance period awards were granted in 2015. The Compensation Committee certified the achievement of the performance conditions related to 2017 performance on this date. No further performance periods remain for this grant.

F6 · shares: The number of shares (a) includes additional shares issued in connection with the Company's 2-for-1 stock split, which was completed on December 18, 2017, and (b) does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

F7 · derivative.exercise_date: The 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.

F7 · derivative.expiration_date: The 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.

F6 · balance_after: The number of shares (a) includes additional shares issued in connection with the Company's 2-for-1 stock split, which was completed on December 18, 2017, and (b) does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-18-008107 · form4.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,994

Underlying: Common Stock · 3,600 shares

Expires not disclosed

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 LTIP based on a three-year performance period award cycle.

F8 · date: These three-year performance period awards were granted in 2017. The Compensation Committee certified the achievement of the performance conditions related to 2017 performance on this date.

F6 · shares: The number of shares (a) includes additional shares issued in connection with the Company's 2-for-1 stock split, which was completed on December 18, 2017, and (b) does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

F7 · derivative.exercise_date: The 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.

F7 · derivative.expiration_date: The 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.

F6 · balance_after: The number of shares (a) includes additional shares issued in connection with the Company's 2-for-1 stock split, which was completed on December 18, 2017, and (b) does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-18-008107 · form4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,394

Underlying: Common Stock · 3,933 shares

Expires not disclosed

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 LTIP based on a three-year performance period award cycle.

F5 · date: These three-year performance period awards were granted in 2016. The Compensation Committee certified the achievement of the performance conditions related to 2017 performance on this date.

F6 · shares: The number of shares (a) includes additional shares issued in connection with the Company's 2-for-1 stock split, which was completed on December 18, 2017, and (b) does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

F7 · derivative.exercise_date: The 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.

F7 · derivative.expiration_date: The 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.

F6 · balance_after: The number of shares (a) includes additional shares issued in connection with the Company's 2-for-1 stock split, which was completed on December 18, 2017, and (b) does not include the 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 after the end of the three-year award cycle in accordance with the LTIP.

SEC source: 0001127602-18-008107 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,058

F3 · kind: Restricted stock award pursuant to the Insperity, Inc. 2012 Incentive Plan.

SEC source: 0001127602-18-008107 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,313

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: These shares of Insperity, Inc. common stock ("Common Stock") will be settled following the certification by the Compensation Committee on this date of the achievement of the final performance conditions for these three-year performance period awards granted in 2015.

F2 · shares: The number of shares does not include additional shares related to the cash value of dividend rights in the amount of $2.39 per share to be settled in shares of Common Stock based on the fair market value of the Common Stock on the trading day immediately proceeding the final settlement date in accordance with the Insperity, Inc. Long-Term Incentive Program (the "LTIP") under the Insperity, Inc. 2012 Incentive Plan, which will be reported in a separate filing.