<SEC-DOCUMENT>0001187342-26-000002.txt : 20260219
<SEC-HEADER>0001187342-26-000002.hdr.sgml : 20260219
<ACCEPTANCE-DATETIME>20260219142538
ACCESSION NUMBER:		0001187342-26-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260217
FILED AS OF DATE:		20260219
DATE AS OF CHANGE:		20260219

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KNIGHT KEVIN P
		CENTRAL INDEX KEY:			0001187342
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35007
		FILM NUMBER:		26653656

	MAIL ADDRESS:	
		STREET 1:		2002 W WAHALLA LN
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85027

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Knight-Swift Transportation Holdings Inc.
		CENTRAL INDEX KEY:			0001492691
		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCKING (NO LOCAL) [4213]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				205589597
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2200 SOUTH 75TH AVENUE
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85043
		BUSINESS PHONE:		602-269-9700

	MAIL ADDRESS:	
		STREET 1:		2200 SOUTH 75TH AVENUE
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85043

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SWIFT TRANSPORTATION Co
		DATE OF NAME CHANGE:	20110512

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SWIFT TRANSPORTATION CO
		DATE OF NAME CHANGE:	20101209

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SWIFT TRANSPORTATION Co
		DATE OF NAME CHANGE:	20101129
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-02-17</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001492691</issuerCik>
        <issuerName>Knight-Swift Transportation Holdings Inc.</issuerName>
        <issuerTradingSymbol>KNX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001187342</rptOwnerCik>
            <rptOwnerName>KNIGHT KEVIN P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2002 W WAHALLA LN</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PHOENIX</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85027</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Chairman</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>31143</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>60.0685</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1374204</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8857</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>59.3908</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1365347</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>22330</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>60.1681</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1343017</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7670</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>60.0313</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1335347</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14009</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported is a weighted average price.  The shares sold in multiple transactions at a price ranging from $60.00 to $60.15, inclusive. The reporting person undertakes to provide KNX, any security holder of KNX, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price range within the ranges set forth in this footnote to Form 4.</footnote>
        <footnote id="F2">The price reported is a weighted average price.  The shares sold in multiple transactions at a price ranging from $59.06 to $60.01, inclusive. The reporting person undertakes to provide KNX, any security holder of KNX, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price range within the ranges set forth in this footnote to Form 4.</footnote>
        <footnote id="F3">The price reported is a weighted average price.  The shares sold in multiple transactions at a price ranging from $60.02 to $60.41, inclusive. The reporting person undertakes to provide KNX, any security holder of KNX, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price range within the ranges set forth in this footnote to Form 4.</footnote>
        <footnote id="F4">The price reported is a weighted average price.  The shares sold in multiple transactions at a price ranging from $59.83 to $60.38, inclusive. The reporting person undertakes to provide KNX, any security holder of KNX, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price range within the ranges set forth in this footnote to Form 4.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>James Brophy / Attorney in Fact</signatureName>
        <signatureDate>2026-02-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
