Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — INSPERITY, INC.

Accession: 0001000753-26-000076

Filed: 2026-05-20

Period: 2026-05-18

CIK: 0001000753

SIC: 7363 (SERVICES-HELP SUPPLY SERVICES)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Item: Submission of Matters to a Vote of Security Holders

Item: Financial Statements and Exhibits

Documents

8-K — nsp-20260518.htm (Primary)

EX-10.1 (ex101secondamendmenttoince.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: nsp-20260518.htm · Sequence: 1

nsp-20260518

0001000753FALSE00010007532026-05-182026-05-180001000753us-gaap:CommonStockMember2026-05-182026-05-18

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): May 18, 2026

Insperity, Inc.

(Exact name of registrant as specified in its charter)

Delaware 1-13998 76-0479645

(State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

19001 Crescent Springs Drive

Kingwood, Texas 77339

(Address of principal executive offices and zip code)

Registrant’s telephone number, including area code: (281) 358-8986

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Ticker symbol(s) Name of each exchange on which registered

Common Stock, $.01 par value per share NSP New York Stock Exchange

NYSE Texas

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2 below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under The Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under The Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangement of Certain Officers.

On May 18, 2026, as described in Item 5.07 below, the stockholders of the Company approved the Second Amendment (“Second Amendment”) to the Insperity, Inc. Incentive Plan, as amended and restated effective May 22, 2023, and as further amended effective May 20, 2025 (the “Plan”). All employees of the Company and its subsidiaries, including its executive officers, and non-employee directors of the Company are eligible for awards under the Plan. The Second Amendment amended the Plan to increase the number of shares of the Company’s common stock reserved for issuance under the Plan by 1,620,000 shares.

For additional information regarding the Second Amendment, please see the summary of the Second Amendment included in the Company’s definitive proxy statement filed with the Securities and Exchange Commission on April 14, 2026 (the “Proxy Statement”) under “Proposal Number 3: Approval of the Second Amendment to the Insperity, Inc. Incentive Plan,” which summary is incorporated herein by reference. The summary does not purport to be complete and is qualified in its entirety by reference to the Second Amendment, a copy of which is attached as Exhibit 10.1 and is incorporated herein by reference.

Item 5.07. Submission of Matters to a Vote of Security Holders.

On May 18, 2026, the Company held its 2026 Annual Meeting at its corporate headquarters in Kingwood, Texas. The results of the matters submitted to a vote of the stockholders at the 2026 Annual Meeting were as follows:

(i)To elect the persons named below as Class I directors for a term expiring at the 2029 annual meeting of stockholders:

Director For Against Abstain Broker Non-Votes

Timothy T. Clifford

31,074,382  1,797,101  13,699  2,997,649

Ellen H. Masterson

31,649,849  821,610  413,723  2,997,649

Latha Ramchand

32,120,159  749,697  15,326  2,997,649

W. Philip Wilmington

32,433,930  436,683  14,569  2,997,649

(ii)To cast an advisory vote to approve the Company's executive compensation:

For Against Abstain Broker Non-Votes

30,946,800  1,880,665  57,716  2,997,649

(iii)To approve the Second Amendment to the Insperity, Inc. Incentive Plan:

For Against Abstain Broker Non-Votes

30,285,794  2,536,874  62,513  2,997,649

(iv)To ratify the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for the year ending December 31, 2026:

For Against Abstain

33,873,189  1,986,519  23,123

Item 9.01. Financial Statements and Exhibits

(d)Exhibits

Number Exhibit

10.1

Second Amendment to the Insperity, Inc. Incentive Plan.

104  Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

INSPERITY, INC.

By: /s/ Christian P. Callens

Christian P. Callens

Senior Vice President of Legal,

General Counsel and Secretary

Date: May 20, 2026

EX-10.1

EX-10.1

Filename: ex101secondamendmenttoince.htm · Sequence: 2

Document

Exhibit 10.1

SECOND AMENDMENT TO THE

INSPERITY, INC. INCENTIVE PLAN

(As Amended and Restated Effective May 22, 2023)

The Second Amendment (the “Amendment”) to the Insperity, Inc. Incentive Plan, as amended and restated effective May 22, 2023 (the “Plan”), hereby amends the Plan as follows:

I.

Effective as of the Effective Date (as defined below), Section 6(a) of the Plan is amended, in its entirety, to be and to read as follows:

(a)    Subject to adjustment as provided in Section 13 hereof, the maximum aggregate number of shares of Common Stock which may be issued pursuant to all Awards is 9,088,610 shares (which includes 7,468,610 shares that were previously approved by the Company’s stockholders for awards under the Plan and the Prior 2017 Plan). Such shares may be shares of original issuance or treasury shares or a combination of the foregoing. All such shares may be issued with respect to ISOs.

II.

Except as modified herein, the Plan shall remain in full force and effect.

III.

This Amendment shall not become effective unless the Company’s stockholders approve the increase in the maximum aggregate number of shares of Common Stock which may be issued pursuant to all Awards under the Plan, as set forth in Article I above, during the 2026 Annual Meeting of the Stockholders of the Company, scheduled to be held on May 18, 2026. If approved, then this Amendment shall become effective as of the date of such meeting (the “Effective Date”).

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 8

v3.26.1

DEI Document

May 18, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

May 18, 2026

Entity Registrant Name

Insperity, Inc.

Entity Incorporation, State or Country Code

DE

Entity File Number

1-13998

Entity Tax Identification Number

76-0479645

Entity Address, Address Line One

19001 Crescent Springs Drive

Entity Address, City or Town

Kingwood

Entity Address, State or Province

TX

Entity Address, Postal Zip Code

77339

City Area Code

281

Local Phone Number

358-8986

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Entity Central Index Key

0001000753

Amendment Flag

false

Common Stock [Member]

Entity Information [Line Items]

Title of 12(b) Security

Common Stock, $.01 par value per share

Trading Symbol

NSP

Security Exchange Name

NYSE

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:

dei_EntityInformationLineItems

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Details

Name:

dei_EntityListingsExchangeAxis=us-gaap_CommonStockMember

Namespace Prefix:

Data Type:

na

Balance Type:

Period Type: