<SEC-DOCUMENT>0001127602-25-007967.txt : 20250304
<SEC-HEADER>0001127602-25-007967.hdr.sgml : 20250304
<ACCEPTANCE-DATETIME>20250304171245
ACCESSION NUMBER:		0001127602-25-007967
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250207
FILED AS OF DATE:		20250304
DATE AS OF CHANGE:		20250304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Callens Christian P
		CENTRAL INDEX KEY:			0002007014
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13998
		FILM NUMBER:		25706274

	MAIL ADDRESS:	
		STREET 1:		19001 CRESCENT SPRINGS DR.
		CITY:			KINGWOOD
		STATE:			TX
		ZIP:			77339-3802

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INSPERITY, INC.
		CENTRAL INDEX KEY:			0001000753
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-HELP SUPPLY SERVICES [7363]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				760479645
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		19001 CRESCENT SPRINGS DR
		CITY:			KINGWOOD
		STATE:			TX
		ZIP:			77339
		BUSINESS PHONE:		7133588986

	MAIL ADDRESS:	
		STREET 1:		19001 CRESCENT SPRINGS DR
		CITY:			KINGWOOD
		STATE:			TX
		ZIP:			77339

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADMINISTAFF INC \DE\
		DATE OF NAME CHANGE:	19950915
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-02-07</periodOfReport>

    <issuer>
        <issuerCik>0001000753</issuerCik>
        <issuerName>INSPERITY, INC.</issuerName>
        <issuerTradingSymbol>NSP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002007014</rptOwnerCik>
            <rptOwnerName>Callens Christian P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>19001 CRESCENT SPRINGS DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>KINGWOOD</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77339</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>SVP Legal, Gen Counsel &amp; Sec</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-02-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>102</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8893</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-02-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>654</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>87.94</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8239</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-02-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F3"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6250</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14489</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock Performance Units (Stock Settled)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-02-07</value>
                <footnoteId id="F5"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1239</value>
                    <footnoteId id="F6"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1239</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1239</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The number of shares represents the dividend rights that were settled in shares of Common Stock based on the fair market value of the Common Stock on the dividend payable dates. Fractional amounts have been rounded to the nearest whole number.</footnote>
        <footnote id="F2">Payment of tax liability by withholding securities incident to the vesting of a restricted stock unit award.</footnote>
        <footnote id="F3">Award of restricted stock units pursuant to the Insperity, Inc. Incentive Plan, as amended and restated. Units vest in annual increments of one-third beginning on the first anniversary of the award. Each restricted stock unit represents a right to receive one share of Common Stock upon vesting.</footnote>
        <footnote id="F4">Each phantom stock performance unit represents a contingent right to receive one share of Common Stock pursuant to the terms of the Long-Term Incentive Program (the &quot;LTIP&quot;) awards issued under the Insperity, Inc. Incentive Plan based on a three-year performance period award cycle.</footnote>
        <footnote id="F5">These three-year performance period awards were granted in 2024. The Compensation Committee certified the achievement of the performance conditions related to 2024 performance on this date.</footnote>
        <footnote id="F6">The number of shares does not include additional shares related to the dividend rights that will be settled in shares of Common Stock after the certification of the final performance conditions. The dividend rights are converted into shares based on the closing price on the dividend payment date for each declared dividend.</footnote>
        <footnote id="F7">These phantom stock performance units vest at the end of the three-year award cycle period following certification in accordance with the LTIP of the achievement of all performance goals for the performance periods applicable to such award.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Christian P. Callens</signatureName>
        <signatureDate>2025-03-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
