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    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73pt; margin-top: 3.65pt; font-family: Arial; font-size: 14pt; font-weight: bold;">UNITED STATES</div>

    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73.1pt; margin-top: 0.85pt; font-family: Arial; font-size: 14pt; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</div>

    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73.05pt; margin-top: 2.1pt; font-family: Arial; font-size: 10pt; font-weight: bold;">Washington, D.C. 20549</div>

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    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73pt; margin-top: 13.35pt; font-family: Arial; font-size: 10pt;">CURRENT REPORT</div>

    <div style="text-align: center; margin-right: 115.35pt; margin-left: 115.7pt; margin-top: 0.45pt; font-family: Arial; font-size: 10pt;">Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 </div>

    <div style="text-align: center; margin-right: 115.35pt; margin-left: 115.7pt; margin-top: 0.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"> <span style="font-family: Arial;"><br/>
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<div><span style="font-family: Arial;">Date of Report (Date of earliest event reported): <ix:nonNumeric name="dei:DocumentPeriodEndDate" id="Fact_35af26e9656446488449d4c3ce447f5b" contextRef="c20250313to20250313" format="ixt:date-monthname-day-year-en">March 13, 2025</ix:nonNumeric></span></div>

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    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73.1pt; margin-top: 12.65pt; font-family: Arial; font-size: 10pt;">(Exact name of registrant as specified in its charter)</div>

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            <div style="text-align: center; margin-right: 9.8pt; margin-left: 5.95pt; font-size: 10pt;">(State or other jurisdiction of incorporation)</div>
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            <div style="text-align: center; margin-right: 23.85pt; margin-left: 13.05pt; font-size: 10pt;">(Commission File Number)</div>
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    <td style="width: 0.5%; vertical-align: top; font-family: Arial;" colspan="1">&#160;</td>

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    <td style="width: 33%; vertical-align: top; font-family: Arial;">&#160;</td>

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    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73pt; margin-top: 0.9pt; font-family: Arial; font-size: 8pt;">(Address of principal executive offices and zip code)</div>

    <div style="text-align: center; margin-right: 72.95pt; margin-left: 72.95pt; margin-top: 3.2pt; font-family: Arial; font-size: 10pt; font-weight: bold;">(<ix:nonNumeric name="dei:CityAreaCode" id="Fact_c1363f3fc64144089e21d23a976c6b9f" contextRef="c20250313to20250313">602</ix:nonNumeric>)
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    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73.15pt; margin-top: 0.45pt; font-family: Arial; font-size: 10pt;">(Registrant's telephone number, including area code)</div>

    <div style="text-align: center; margin-right: 72.95pt; margin-left: 72.95pt; margin-top: 6.45pt; font-family: Arial; font-size: 10pt; font-weight: bold;">N/A</div>

    <div style="text-align: center; margin-right: 72.95pt; margin-left: 73.15pt; margin-top: 0.45pt; font-family: Arial; font-size: 10pt;">(Former name or former address, if changed since last report)</div>

    <div style="text-align: left; margin-right: 9.95pt; margin-left: 9.25pt; margin-top: 8.6pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"> <span style="font-family: Arial;"><br/>
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    <div style="text-align: left; margin-right: 9.95pt; margin-left: 9.25pt; margin-top: 8.6pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"> <span style="font-family: Arial;">Check the appropriate box below if the Form 8-K is intended
        to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span></div>

    <div style="text-align: left; margin-right: 9.95pt; margin-left: 9.25pt; margin-top: 8.6pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">
<div><span style="font-family: Arial;"> </span></div>

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    <td style="width: 2%;"><ix:nonNumeric name="dei:WrittenCommunications" id="Fact_d85feea370e1449dbe58ac6bb41c3280" contextRef="c20250313to20250313" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></td>

    <td style="width: 97%;">
              <div style="font-family: Arial;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</div>
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    <td style="width: 2%;">
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    <td style="width: 97%;">
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                <div style="text-align: left; margin-top: 1.7pt; font-size: 10pt;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</div>
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    <td style="width: 97%;">
              <div style="font-family: Arial;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</div>
            </td>

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    <td style="width: 2%;">
              <div><ix:nonNumeric name="dei:PreCommencementIssuerTenderOffer" id="Fact_9650da7ab4d647f194600d6399284849" contextRef="c20250313to20250313" format="ixt-sec:boolballotbox">&#9744;</ix:nonNumeric></div>
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    <td style="width: 97%;">
              <div style="font-family: Arial;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>
            </td>

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            <div>
              <div>&#160;&#160;&#160; Securities registered pursuant to Section 12(b) of the Act:</div>
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            &#160;&#160;&#160; <br/>
          </td>

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            <div style="text-align: center; margin-right: 25.05pt; margin-left: 29.9pt; font-size: 8pt; font-weight: bold;">Title of each class</div>
          </td>

    <td style="width: 0.5%; vertical-align: top; font-family: Arial; padding-bottom: 2px;" colspan="1">&#160;</td>

    <td style="width: 33%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); font-family: Arial;">
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    <td style="width: 0.5%; vertical-align: top; font-family: Arial; padding-bottom: 2px;" colspan="1">&#160;</td>

    <td style="width: 33%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); font-family: Arial;">
            <div style="text-align: center; margin-right: 18pt; margin-left: 19.25pt; font-size: 8pt; font-weight: bold;">Name of each exchange on which registered</div>
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            <div style="text-align: center; margin-right: 25.05pt; margin-left: 30pt; font-size: 10pt;"><ix:nonNumeric name="dei:Security12bTitle" id="Fact_da6e5674cc20416d80ddac49d4d70ff0" contextRef="c20250313to20250313">Common Stock $0.01 Par Value</ix:nonNumeric><br/>
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    <td style="width: 0.5%; vertical-align: top; font-family: Arial;" colspan="1">&#160;</td>

    <td style="width: 33%; vertical-align: top; font-family: Arial;">
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    <td style="width: 0.5%; vertical-align: top; font-family: Arial;" colspan="1">&#160;</td>

    <td style="width: 33%; vertical-align: top; font-family: Arial;">
            <div style="text-align: center; margin-right: 18pt; margin-left: 19.25pt; font-size: 10pt;"><ix:nonNumeric name="dei:SecurityExchangeName" id="Fact_81e569add85741f0953082f846838f09" contextRef="c20250313to20250313" format="ixt-sec:exchnameen">New York Stock Exchange</ix:nonNumeric><br/>
            </div>
          </td>

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    <div style="text-align: left; margin-right: 9.95pt; margin-left: 5.5pt; margin-top: 5.1pt; font-family: Arial; font-size: 10pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of
      1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</div>

    <div style="text-align: left; margin-left: 5.5pt;"><span style="font-size: 10pt; font-family: Arial;">Emerging growth company</span><span class="HorizontalTab" style="width: 9pt; font-size: 1px; display: inline-block; font-family: Arial;"> &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
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    <div style="text-align: left; margin-right: 5.05pt; margin-left: 5.5pt; margin-top: 3.3pt; font-family: Arial; font-size: 10pt;">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. <span style="font-size: 10pt;">&#9744;</span></div>

    <div style="margin-top: 0.15pt; font-family: Arial;"><br/>
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              <div style="font-style: italic; font-weight: bold; font-size: 11pt;"><span style="color: rgb(255, 255, 255); font-family: Arial;">&#160;ITEM 5.02</span><span style="font-family: Arial;"><br/>
                </span></div>
            </td>

    <td style="background-color: #953735; width: 80%;">
              <div style="font-style: italic; font-weight: bold; font-size: 11pt;"><span style="color: rgb(255, 255, 255); font-family: Arial;">DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY
                  ARRANGEMENTS OF CERTAIN OFFICERS </span><span style="font-family: Arial;"><br/>
                </span></div>
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    <div style="text-align: justify; margin-left: 5.5pt; margin-top: 6pt; margin-bottom: 6pt; font-family: Arial; font-size: 10pt; font-weight: bold; color: rgb(31, 73, 125);">Knight-Swift Appoints Douglas Col to the Board</div>

    <div style="text-align: justify; margin-left: 5.5pt; font-family: Arial; font-size: 10pt;">The Board of Directors (the "Board") of Knight-Swift Transportation Holdings Inc. (the "Company"), appointed Douglas Col as a member of the Board, effective as
      of March 13, 2025, to serve until the 2025 annual meeting of stockholders. In connection with his appointment, the Board determined that Mr. Col will be an "independent director&#8221; under New York Stock Exchange listing standards and as defined in Rule
      10A-3 of the Securities Exchange Act of 1934, as amended. Mr. Col was appointed to the Finance Committee and to the Nominating and Corporate Governance Committee of the Board. Mr. Col will participate in the Company's director compensation program as
      described in the Company's most recent Proxy Statement filed with the Securities and Exchange Commission on April 4, 2024, under the heading &#8220;Director Compensation.&#8221; There are no arrangements or understandings between Mr. Col and any other persons
      pursuant to which he was appointed as a member of the Board. Mr. Col does not have a direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K.</div>

    <div style="font-family: Arial;"><br/>
    </div>

    <div style="text-align: justify; margin-left: 5.5pt; font-family: Arial; font-size: 10pt;">Mr. Col, 60, served as Executive Vice President and Chief Financial Officer of Saia, Inc., a transportation company providing less-than-truckload services across
      North America, from January 2020 through his retirement in May 2024. Mr. Col joined Saia in 2014 as Vice President and Treasurer. Prior to joining Saia, Mr. Col was a Director in the transportation investment banking group at Cowen and Company from
      2012 to 2013.&#160; From 2006 to 2011<span style="font-size: 10pt;">,</span> Mr. Col was an equity analyst at Wellspring Management where he focused on industrial and transportation sectors. Mr. Col was a fund manager at Red Rock Partners from 2004 to
      2006. Mr. Col is a current member of the board of directors of Proficient Auto Logistics Inc., a specialized freight company focused on providing automobile transportation and logistics services. Mr. Col received his MBA from Vanderbilt University &#8211;
      Owen Graduate School of Management in 1994 and spent ten years at Morgan Keegan &amp; Company where he was a Managing Director focused on transportation equities. Mr. Col also has a Bachelor of Civil Engineering degree from the Georgia Institute of
      Technology.</div>

    <div style="text-align: justify; margin-left: 5.5pt; font-family: Arial; font-size: 10pt;"> <br/>
    </div>

    <div style="text-align: justify; margin-left: 5.5pt; font-family: Arial; font-size: 10pt;">
      <table cellspacing="0" cellpadding="0" border="0" style="background-color: #17375E; width: 100%; color: #000000; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">


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    <td style="background-color: #1A3D68; width: 20%;">
              <div style="font-style: italic; font-weight: bold; font-size: 11pt; font-family: Arial;"><span style="color: rgb(255, 255, 255);">&#160;ITEM 8.01</span><br/>
              </div>
            </td>

    <td style="background-color: #953735; width: 80%;">
              <div style="font-style: italic; font-weight: bold; font-size: 11pt; font-family: Arial;"><span style="color: rgb(255, 255, 255);">OTHER EVENTS</span><br/>
              </div>
            </td>

  </tr>


</table>
    </div>

    <div style="text-align: justify; margin-right: 5.05pt; margin-left: 5.5pt; margin-top: 4.7pt; font-family: Arial; font-size: 10pt;">On March 14, 2025, the Company issued a press release announcing Mr. Col&#8217;s appointment to the Board. A copy of the press
      release is attached to this report as Exhibit 99.</div>

    <div style="text-align: justify; margin-right: 5.05pt; margin-left: 5.5pt; margin-top: 4.7pt; font-family: Arial; font-size: 10pt;">
      <table cellspacing="0" cellpadding="0" border="0" style="background-color: #17375E; width: 100%; color: #000000; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">


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    <td style="background-color: #1A3D68; width: 20%;">
              <div style="font-style: italic; font-weight: bold; font-size: 11pt;"><span style="color: rgb(255, 255, 255); font-family: Arial;">&#160;ITEM 9.01</span><span style="font-family: Arial;"><br/>
                </span></div>
            </td>

    <td style="background-color: #953735; width: 80%;">
              <div style="font-style: italic; font-weight: bold; font-size: 11pt;"><span style="color: rgb(255, 255, 255); font-family: Arial;">FINANCIAL STATEMENTS AND EXHIBITS</span><span style="font-family: Arial;"><br/>
                </span></div>
            </td>

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    </div>

    <div style="text-align: left; margin-left: 5.5pt; margin-top: 2.65pt; font-family: Arial; font-size: 10pt;">(d) Exhibits</div>

    <div style="text-align: left; margin-left: 5.5pt; margin-top: 2.65pt; font-family: Arial; font-size: 10pt;">
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              <div style="font-family: Arial; font-weight: bold;">Exhibit</div>
            </td>

    <td colspan="1" style="width: 1%; padding-bottom: 2px;">&#160;</td>

    <td style="width: 89%; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="font-family: Arial; font-weight: bold;">Description <br/>
              </div>
            </td>

  </tr>

  <tr>

    <td style="width: 10%; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="font-family: Arial;"><a style="color: #000000;" href="exhibit99.htm">Exhibit 99 </a><br/>
              </div>
            </td>

    <td colspan="1" style="width: 1%; padding-bottom: 2px;">&#160;</td>

    <td style="width: 89%; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="font-family: Arial;"><span style="color: rgb(36, 36, 36);"><a style="color: #000000;" href="exhibit99.htm">Knight-Swift Transportation Holdings, Inc.
                    press release dated March 14, 2025, announcing Mr. Col's appointment</a></span> <br/>
              </div>
            </td>

  </tr>

  <tr>

    <td style="width: 10%; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="font-family: Arial;">Exhbit 104 <br/>
              </div>
            </td>

    <td colspan="1" style="width: 1%; padding-bottom: 2px;">&#160;</td>

    <td style="width: 89%; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="font-family: Arial;">Cover Page Interactive Data File (embedded within the Inline XBRL document) <br/>
              </div>
            </td>

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    <div><br/></div>

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    <div style="text-align: left; font-family: Arial;"><br/>
    </div>

    <div style="text-align: center; margin-right: 72.95pt; margin-left: 72.95pt; margin-top: 3.15pt; font-family: Arial; font-size: 10pt; font-weight: bold;">SIGNATURES</div>

    <div style="text-align: left; margin-right: 9.95pt; margin-left: 5.5pt; font-family: Arial; font-size: 10pt;"> <br/>
    </div>

    <div style="text-align: left; margin-right: 9.95pt; margin-left: 5.5pt; font-family: Arial; font-size: 10pt;">
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              <div style="text-align: left; margin-right: 9.95pt; margin-left: 5.5pt; font-family: Arial; font-size: 10pt;">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.</div>
            </td>

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    <td rowspan="1" style="width: 30%;">&#160;</td>

    <td rowspan="1" colspan="1" style="width: 30%; font-family: Arial;">&#160;</td>

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    <td style="width: 30%; padding-bottom: 2px;">
              <div style="text-align: left; font-family: Arial;">&#160; Date: March 14, 2025</div>
            </td>

    <td colspan="1" style="width: 30%; padding-bottom: 2px; font-family: Arial;">&#160;</td>

    <td style="width: 40%; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="font-family: Arial;"><span style="font-weight: bold;">&#160;Knight-Swift Transportation Holdings, Inc.</span><br/>
              </div>
            </td>

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              <div style="font-family: Arial;">&#160;</div>
            </td>

    <td colspan="1" style="width: 30%; font-family: Arial;">&#160;</td>

    <td style="width: 40%;">
              <div style="font-family: Arial;">&#160;(Registrant)</div>
            </td>

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              <div style="font-family: Arial;">&#160;</div>
            </td>

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    <td style="width: 40%; border-bottom: 2px solid rgb(0, 0, 0); font-family: Arial;">
              <div><br/>
              </div>
              <span style="font-style: italic;">/s/ Andrew Hess</span><br/>
            </td>

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            </td>

    <td colspan="1" style="width: 30%; font-family: Arial;">&#160;<br/>
            </td>

    <td style="width: 40%;">
              <div style="font-family: Arial;">&#160;Andrew Hess<br/>
              </div>
            </td>

  </tr>

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    <td style="width: 30%;">
              <div style="font-family: Arial;">&#160;</div>
            </td>

    <td colspan="1" style="width: 30%; font-family: Arial;">&#160;</td>

    <td style="width: 40%;">
              <div style="font-family: Arial;">&#160;Chief Financial Officer<br/>
              </div>
            </td>

  </tr>


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    </div>

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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):
March 13, 2025
Knight-Swift Transportation Holdings Inc.
(Exact name of registrant as specified in its charter)
Delaware
001-35007
20-5589597
(State or other jurisdiction of incorporation)
(Commission File Number)
(IRS Employer Identification No.)
2002 West Wahalla Lane
Phoenix
,
Arizona
85027
(Address of principal executive offices and zip code)
(
602
)
269-2000
(Registrant's telephone number, including area code)
N/A
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K is intended
        to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐
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))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock $0.01 Par Value
KNX
New York Stock Exchange
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
                  ARRANGEMENTS OF CERTAIN OFFICERS
Knight-Swift Appoints Douglas Col to the Board
The Board of Directors (the "Board") of Knight-Swift Transportation Holdings Inc. (the "Company"), appointed Douglas Col as a member of the Board, effective as
      of March 13, 2025, to serve until the 2025 annual meeting of stockholders. In connection with his appointment, the Board determined that Mr. Col will be an "independent director" under New York Stock Exchange listing standards and as defined in Rule
      10A-3 of the Securities Exchange Act of 1934, as amended. Mr. Col was appointed to the Finance Committee and to the Nominating and Corporate Governance Committee of the Board. Mr. Col will participate in the Company's director compensation program as
      described in the Company's most recent Proxy Statement filed with the Securities and Exchange Commission on April 4, 2024, under the heading "Director Compensation." There are no arrangements or understandings between Mr. Col and any other persons
      pursuant to which he was appointed as a member of the Board. Mr. Col does not have a direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K.
Mr. Col, 60, served as Executive Vice President and Chief Financial Officer of Saia, Inc., a transportation company providing less-than-truckload services across
      North America, from January 2020 through his retirement in May 2024. Mr. Col joined Saia in 2014 as Vice President and Treasurer. Prior to joining Saia, Mr. Col was a Director in the transportation investment banking group at Cowen and Company from
      2012 to 2013.  From 2006 to 2011
,
Mr. Col was an equity analyst at Wellspring Management where he focused on industrial and transportation sectors. Mr. Col was a fund manager at Red Rock Partners from 2004 to
      2006. Mr. Col is a current member of the board of directors of Proficient Auto Logistics Inc., a specialized freight company focused on providing automobile transportation and logistics services. Mr. Col received his MBA from Vanderbilt University –
      Owen Graduate School of Management in 1994 and spent ten years at Morgan Keegan & Company where he was a Managing Director focused on transportation equities. Mr. Col also has a Bachelor of Civil Engineering degree from the Georgia Institute of
      Technology.
ITEM 8.01
OTHER EVENTS
On March 14, 2025, the Company issued a press release announcing Mr. Col's appointment to the Board. A copy of the press
      release is attached to this report as Exhibit 99.
ITEM 9.01
FINANCIAL STATEMENTS AND EXHIBITS
(d) Exhibits
Exhibit
Description
Exhibit 99
Knight-Swift Transportation Holdings, Inc.
                    press release dated March 14, 2025, announcing Mr. Col's appointment
Exhbit 104
Cover Page Interactive Data File (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.
Date: March 14, 2025
Knight-Swift Transportation Holdings, Inc.
(Registrant)
/s/ Andrew Hess
Andrew Hess
Chief Financial Officer