NSP

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 16

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 215,040

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 15

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 78,286

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 14

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 144,300

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 13

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 644,579

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001127602-16-068104 · form4.xml · nonDerivative · entry 3

SARVADI PAUL J · CIK 0001032399 · Director · Chairman of the Board & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self, As General Partner of Our Ship Limited Partnership, Ltd.

Disclosed balance after: 843,396

F3 · price: Bona fide gift to The Nathaniel Foundation.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 12

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 222,562

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 11

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 81,025

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 10

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 149,348

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 9

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 667,128

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 8

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 237,465

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 7

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 86,450

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 6

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 159,349

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 5

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 711,799

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 4

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 242,332

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 3

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 88,222

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 2

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 162,614

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006239 · form406297178_11232016.xml · nonDerivative · entry 1

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 726,386

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001127602-16-068104 · form4.xml · nonDerivative · entry 2

SARVADI PAUL J · CIK 0001032399 · Director · Chairman of the Board & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self, As General Partner of the Sarvadi Children's Limited Partnership

Disclosed balance after: 421,069

F1 · price: Weighted average sales price. Actual prices ranged from $71.50 to $72.35.

F2 · price: 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: 0001127602-16-068104 · form4.xml · nonDerivative · entry 1

SARVADI PAUL J · CIK 0001032399 · Director · Chairman of the Board & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self, As General Partner of Our Ship Limited Partnership, Ltd.

Disclosed balance after: 853,396

F1 · price: Weighted average sales price. Actual prices ranged from $71.50 to $72.35.

F2 · price: 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: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 16

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 252,368

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 15

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 91,876

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 14

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 169,349

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 13

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 756,470

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 12

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 265,264

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 11

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 96,571

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 10

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 178,003

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 9

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 795,125

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 8

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 283,147

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 7

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 103,082

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 6

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 190,004

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 5

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 848,730

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001127602-16-067251 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,907

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 4

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Managed Account of Starboard Value LP

Disclosed balance after: 285,134

F4 · ownership.nature: Shares of common stock held in an account managed by Starboard Value LP (the "Managed Account"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of Starboard Value LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares held in the Managed Account for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 3

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity C LP

Disclosed balance after: 103,805

F3 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity C LP ("Starboard C LP"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the investment manager of Starboard C LP, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard C LP for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 2

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity S LLC

Disclosed balance after: 191,338

F2 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity S LLC ("Starboard S LLC"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP, the general partner of the manager of Starboard S LLC, and as a member and member of the Management Committee of Principal GP, the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard S LLC for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000921895-16-006193 · form406297178_11152016.xml · nonDerivative · entry 1

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd.

Disclosed balance after: 854,686

F1 · ownership.nature: Shares of common stock directly held by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"). The Reporting Person, solely by virtue of his position as a member of the Management Committee of Starboard Value GP LLC ("Starboard Value GP"), the general partner of the investment manager of Starboard V&O Fund, and as a member and member of the Management Committee of Starboard Principal Co GP LLC ("Principal GP"), the general partner of the member of Starboard Value GP, may be deemed to beneficially own the shares directly held by Starboard V&O Fund for purposes of Section 16. The Reporting Person expressly disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001127602-16-066994 · form4.xml · nonDerivative · entry 2

MINCKS JAY E · CIK 0001198985 · EVP of Sales & Marketing

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,082

SEC source: 0001127602-16-067026 · form4.xml · nonDerivative · entry 1

Michelle McKenna · CIK 0001636583 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,810

SEC source: 0001127602-16-067017 · form4.xml · nonDerivative · entry 1

Herink Daniel D · CIK 0001398237 · SVP Legal, Gen Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,243

F1 · price: Weighted average price. Actual prices ranged from $73.00 to $73.15.

F2 · price: 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: 0001127602-16-066994 · form4.xml · nonDerivative · entry 1

MINCKS JAY E · CIK 0001198985 · EVP of Sales & Marketing

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,582

SEC source: 0001127602-16-066415 · form4.xml · nonDerivative · entry 2

MINCKS JAY E · CIK 0001198985 · EVP of Sales & Marketing

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,082

SEC source: 0001127602-16-066415 · form4.xml · nonDerivative · entry 1

MINCKS JAY E · CIK 0001198985 · EVP of Sales & Marketing

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,582

F1 · balance_after: Includes 38 shares purchased through the Insperity Employee Stock Purchase Plan.

SEC source: 0001127602-16-065877 · form4.xml · nonDerivative · entry 1

CLIFFORD TIM · CIK 0001590858 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,026

F1 · price: Initial restricted stock award pursuant to the Insperity, Inc. Directors Compensation Plan.

SEC source: 0000921895-16-005803 · form406297178_10042016.xml · nonDerivative · entry 1

Feld Peter A · CIK 0001410600 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,591

F1 · price: Mr. Feld was awarded these shares in lieu of $17,750 cash compensation for his services as a member of the Board of Directors of Insperity, Inc. (the "Issuer") during the third quarter of 2016, based on a September 30, 2016 closing price per share of $72.64. Compensation includes a quarterly director's fee of $15,250 and a quarterly fee of $2,500 for serving as a member of the Compensation Committee of the Issuer's Board of Directors. In addition to the shares of common stock awarded, Mr. Feld will also receive $25.84 in cash.

SEC source: 0001127602-16-062403 · form4.xml · derivative · entry 7

BROWN MICHAEL W · CIK 0001205542 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,813 shares

Expires 2021-05-17

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.

SEC source: 0001127602-16-062403 · form4.xml · derivative · entry 6

BROWN MICHAEL W · CIK 0001205542 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,183 shares

Expires 2019-05-05

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.

SEC source: 0001127602-16-062403 · form4.xml · derivative · entry 5

BROWN MICHAEL W · CIK 0001205542 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,517 shares

Expires 2018-05-06

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.

SEC source: 0001127602-16-062403 · form4.xml · nonDerivative · entry 4

BROWN MICHAEL W · CIK 0001205542 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,541

F1 · price: Weighted average price. Actual prices ranged from $67.00 to $67.45.

F2 · price: 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: 0001127602-16-062403 · form4.xml · nonDerivative · entry 3

BROWN MICHAEL W · CIK 0001205542 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,054

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.

SEC source: 0001127602-16-062403 · form4.xml · nonDerivative · entry 2

BROWN MICHAEL W · CIK 0001205542 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,241

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.