<html>
<head>
<title></title>
<!--Licensed to: Scudder Law Firm
    Document created using EDGARfilings PROfile 4.4.0.0
    Copyright 1995 - 2018 Broadridge-->
</head>
<body style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif" bgcolor="#ffffff" text="#000000">
<div><br>
<hr style="BORDER-TOP: black 4px solid; HEIGHT: 10px; BORDER-RIGHT: medium none; BORDER-BOTTOM: black 1px solid; COLOR: #ffffff; TEXT-ALIGN: center; MARGIN-LEFT: auto; BORDER-LEFT: medium none; BACKGROUND-COLOR: #ffffff; MARGIN-RIGHT: auto" align="center">
</div>

<div style="TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 17pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; FONT-STYLE: normal; TEXT-ALIGN: center">UNITED STATES</div>

<div style="FONT-SIZE: 17pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; TEXT-ALIGN: center">SECURITIES AND EXCHANGE COMMISSION</div>

<div style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; TEXT-ALIGN: center">Washington, D.C. 20549</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">
<hr style="BORDER-TOP: medium none; HEIGHT: 1px; BORDER-RIGHT: medium none; WIDTH: 100%; BORDER-BOTTOM: medium none; COLOR: #000000; TEXT-ALIGN: right; MARGIN-LEFT: auto; BORDER-LEFT: medium none; BACKGROUND-COLOR: #000000; MARGIN-RIGHT: 0px" align="right" noshade="noshade">
</div>

<div><br>
</div>

<div style="FONT-SIZE: 17pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; TEXT-ALIGN: center">FORM 8-K</div>

<div><br>
</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; TEXT-ALIGN: center">CURRENT REPORT</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; TEXT-ALIGN: center">Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"><br>
</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: center">Date of Report (Date of earliest event reported): May 10, 2018</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">
<hr style="BORDER-TOP: medium none; HEIGHT: 1px; BORDER-RIGHT: medium none; WIDTH: 100%; BORDER-BOTTOM: medium none; COLOR: #000000; TEXT-ALIGN: right; MARGIN-LEFT: auto; BORDER-LEFT: medium none; BACKGROUND-COLOR: #000000; MARGIN-RIGHT: 0px" align="right" noshade="noshade">
</div>

<div style="TEXT-ALIGN: center"><img style="HEIGHT: 168px; WIDTH: 650px" border="0" src="knxswiftlogo.jpg"></div>

<div style="FONT-SIZE: 19pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; TEXT-ALIGN: center">Knight-Swift Transportation Holdings Inc.</div>

<div><br>
</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: center">(Exact name of registrant as specified in its charter)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">
<hr style="BORDER-TOP: medium none; HEIGHT: 1px; BORDER-RIGHT: medium none; WIDTH: 100%; BORDER-BOTTOM: medium none; COLOR: #000000; TEXT-ALIGN: right; MARGIN-LEFT: auto; BORDER-LEFT: medium none; BACKGROUND-COLOR: #000000; MARGIN-RIGHT: 0px" align="right" noshade="noshade">
</div>

<table id="zcdb45473a5dc4f6babde0515b020e6ab" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0">
<tr>
<td style="WIDTH: 5.52%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 30.44%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 0.98%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 26.62%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 0.98%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 35.45%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.96%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid" colspan="2">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Delaware</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">001-35007</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">20-5589597</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.96%; VERTICAL-ALIGN: top" colspan="2">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(State or other jurisdiction of incorporation)</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: top">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(Commission File Number)</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: top">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(IRS Employer Identification No.)</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 30.44%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 63.56%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid" colspan="4">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">20002 North 19th Avenue, Phoenix, Arizona</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">85027</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 63.56%; VERTICAL-ALIGN: bottom" colspan="4">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(Address of principal executive offices)</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(Zip Code)</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 30.44%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>

<tr style="HEIGHT: 14px">
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 30.44%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: bottom">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(602) 269-2000</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 100%; VERTICAL-ALIGN: bottom" colspan="6">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(Registrant's telephone number, including area code)</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 30.44%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 30.44%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: bottom">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">N/A</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 100%; VERTICAL-ALIGN: bottom" colspan="6">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(Former name or former address, if changed since last report)</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 30.44%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 26.62%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 0.98%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 35.45%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 100%; VERTICAL-ALIGN: middle" colspan="6">
<div style="TEXT-ALIGN: justify; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">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:</div>
</td>
</tr>

<tr style="HEIGHT: 35px">
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: middle">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;&#9744;&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 94.48%; VERTICAL-ALIGN: middle" colspan="5">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-TOP: 2px; MARGIN-RIGHT: 1.1pt">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</div>
</td>
</tr>

<tr style="HEIGHT: 32px">
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: middle">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#9744;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 94.48%; VERTICAL-ALIGN: middle" colspan="5">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</div>
</td>
</tr>

<tr style="HEIGHT: 33px">
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: middle">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#9744;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 94.48%; VERTICAL-ALIGN: middle" colspan="5">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</div>
</td>
</tr>

<tr style="HEIGHT: 32px">
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 5.52%; VERTICAL-ALIGN: middle">
<div style="TEXT-ALIGN: center; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#9744;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 94.48%; VERTICAL-ALIGN: middle" colspan="5">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>
</td>
</tr>
</table>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: left; MARGIN-TOP: 7.7pt">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="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: justify">Emerging growth company&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#9744;</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: justify">&#160;</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: justify">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.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#9744;</div>

<table id="z214cda4baa5a42e2b2972f5dd286517b" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0">
<tr>
<td style="WIDTH: 100%; VERTICAL-ALIGN: middle" colspan="5">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 23.99%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 18.99%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 19%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 19%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 19.02%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 23.99%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 4px double">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="WIDTH: 18.99%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 4px double">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="WIDTH: 19%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 4px double">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="WIDTH: 19%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 4px double">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="WIDTH: 19.02%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 4px double">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>
</table>

<div>&#160;</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; WIDTH: 100%; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<table id="z049003aedd0d4265931d1e820bcdfc4d" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" border="0">
<tr>
<td style="VERTICAL-ALIGN: middle; BORDER-BOTTOM: #742b29 1px solid" colspan="2">&#160;</td>
</tr>

<tr style="HEIGHT: 18px">
<td style="WIDTH: 11%; VERTICAL-ALIGN: middle">&#160;</td>
<td style="WIDTH: 83.01%; VERTICAL-ALIGN: middle; BACKGROUND-COLOR: #ffffff">&#160;</td>
</tr>

<tr style="HEIGHT: 18px">
<td style="WIDTH: 11%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 83.01%; VERTICAL-ALIGN: middle; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; WIDTH: 11%; VERTICAL-ALIGN: top; COLOR: #ffffff; BACKGROUND-COLOR: #14437c">
<div style="FONT-WEIGHT: bold; FONT-STYLE: italic; TEXT-ALIGN: justify; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">ITEM 8.01</div>
</td>
<td style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; WIDTH: 83.01%; VERTICAL-ALIGN: bottom; COLOR: #ffffff; BACKGROUND-COLOR: #860a0a">
<div style="FONT-WEIGHT: bold; FONT-STYLE: italic; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">OTHER EVENTS</div>
</td>
</tr>
</table>

<div style="MARGIN-BOTTOM: 4.4pt; FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; MARGIN-TOP: 6.6pt"><font style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">On May 10, 2018, Knight-Swift Transportation Holdings Inc., a Delaware corporation (the "Company"), announced that its Board of Directors declared a quarterly cash dividend of $0.06 per share of common stock.&#160; The dividend is payable to the Company's stockholders of record as of June 1, 2018, and is expected to be paid on June 27, 2018.</font><a name="part_1_2_2"><!--Anchor--></a><a name="item_1_47_1"><!--Anchor--></a></div>

<table id="ze6c3d9c3b53644cabfaaccb8a32903f3" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" border="0">
<tr>
<td style="VERTICAL-ALIGN: middle" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
</tr>

<tr>
<td style="WIDTH: 11%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 83.01%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; WIDTH: 11%; VERTICAL-ALIGN: top; COLOR: #ffffff; BACKGROUND-COLOR: #14437c">
<div style="FONT-WEIGHT: bold; FONT-STYLE: italic; TEXT-ALIGN: justify; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">ITEM 9.01</div>
</td>
<td style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; WIDTH: 83.01%; VERTICAL-ALIGN: bottom; COLOR: #ffffff; BACKGROUND-COLOR: #860a0a">
<div style="FONT-WEIGHT: bold; FONT-STYLE: italic; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">FINANCIAL STATEMENTS AND EXHIBITS</div>
</td>
</tr>
</table>

<div style="MARGIN-BOTTOM: 6.6pt; FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: left">(d) Exhibits</div>

<table id="z0adb37f29188405888544b9db03dfbf7" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0">
<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 12%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Exhibit</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 1%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 87.01%; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Description</div>
</td>
</tr>

<tr style="HEIGHT: 30px">
<td style="FONT-SIZE: 9pt; BORDER-TOP: #000000 1px solid; FONT-FAMILY: Arial; WIDTH: 12%; VERTICAL-ALIGN: middle">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt"><a href="exhibit99.htm#Exhibit_99">Exhibit 99</a></div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 1%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; BORDER-TOP: #000000 1px solid; FONT-FAMILY: Arial; WIDTH: 87.01%; VERTICAL-ALIGN: middle">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Knight-Swift Transportation Holdings Inc. press release dated May 10, 2018, announcing quarterly cash dividend</div>
</td>
</tr>
</table>

<div><br>
</div>

<div style="MARGIN-BOTTOM: 4.4pt; FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: justify">The information contained in this Current Report, including the exhibit hereto, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the "Securities Act"), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"><br>
</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: justify">The information in this report and the exhibit hereto may be considered forward-looking statements within the meaning of Section 27A of the Securities Act, and Section 21E of the Exchange Act, and such statements are subject to the safe harbor created by those sections and the Private Securities Litigation Reform Act of 1995, as amended. All statements, other than statements of historical or current fact, are statements that could be deemed forward-looking statements, including, without limitation, statements relating to our declaration of quarterly dividends. Forward-looking statements are based on the current beliefs, assumptions, and expectations of management and current market conditions. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, which could cause future events and actual results to differ materially from those set forth in, contemplated by, or underlying the forward-looking statements. There can be no assurance that future dividends will be declared. The declaration of future dividends is subject to approval of our Board of Directors and various risks and uncertainties, including, but not limited to: our cash flow and cash needs; compliance with applicable law; restriction on the payment of dividends under existing or future financing <font style="COLOR: #000000">arrangements; changes </font>in tax laws relating to corporate dividends; deterioration in our financial condition or results, and those risks, uncertainties, and other factors identified from time-to-time in our filings with the Securities and Exchange Commission. Please refer to the last paragraph of the press release and various disclosures by the Company in its press releases, stockholder reports, and filings with the Securities and Exchange Commission for information concerning risks, uncertainties, and other factors that may affect future results.</div>

<div><font style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; FONT-WEIGHT: normal; FONT-STYLE: normal"><br>
</font>

<table id="z183a6f9ee118473c82648476e9249be3" style="WIDTH: 100%" cellspacing="0" cellpadding="0" align="center" border="0">
<tr style="HEIGHT: 11px">
<td style="WIDTH: 100%; BORDER-BOTTOM: #742b29 1px solid; BACKGROUND-COLOR: #ffffff">
<div>&#160;</div>
</td>
</tr>
</table>
</div>

<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; FONT-WEIGHT: normal; FONT-STYLE: normal"><br>
</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; WIDTH: 100%; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; FONT-WEIGHT: normal; FONT-STYLE: normal; TEXT-ALIGN: left"><a name="sc90948efcf2653fcaf60b365525a953"><!--Anchor--></a><br>
</div>

<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; FONT-WEIGHT: normal; FONT-STYLE: normal"><br>
</div>

<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; FONT-WEIGHT: normal; FONT-STYLE: normal; TEXT-ALIGN: left"><a name="part_1_2_3"><!--Anchor--></a><br>
</div>

<div style="FONT-SIZE: 11pt; FONT-FAMILY: Arial; FONT-WEIGHT: bold; TEXT-ALIGN: center">SIGNATURES</div>

<div><br>
</div>

<div style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; TEXT-ALIGN: justify">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>

<table id="z748678028a3a452ab0194655c48c2c74" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 100%; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" border="0">
<tr>
<td style="WIDTH: 4.01%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 20.04%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 24.05%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 25.95%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
<td style="WIDTH: 25.95%; VERTICAL-ALIGN: middle">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#160;</div>
</td>
</tr>

<tr style="HEIGHT: 18px">
<td style="WIDTH: 4.01%; VERTICAL-ALIGN: bottom">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="WIDTH: 20.04%; VERTICAL-ALIGN: bottom">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="WIDTH: 24.05%; VERTICAL-ALIGN: bottom">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid" colspan="2">
<div style="FONT-WEIGHT: bold; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Knight-Swift Transportation Holdings Inc.</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 4.01%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 20.04%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 24.05%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; VERTICAL-ALIGN: bottom" colspan="2">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">(Registrant)</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 4.01%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 20.04%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 24.05%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 25.95%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 25.95%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 4.01%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Date:</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 20.04%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: right; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">May 10, 2018</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 24.05%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; VERTICAL-ALIGN: bottom; BORDER-BOTTOM: #000000 1px solid" colspan="2">
<div style="FONT-STYLE: italic; TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">/s/ Adam W. Miller</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 4.01%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 20.04%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 24.05%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; VERTICAL-ALIGN: bottom" colspan="2">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Adam W. Miller</div>
</td>
</tr>

<tr>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 4.01%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 20.04%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; WIDTH: 24.05%; VERTICAL-ALIGN: bottom">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">&#160;</div>
</td>
<td style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; VERTICAL-ALIGN: bottom" colspan="2">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 1.1pt; MARGIN-RIGHT: 1.1pt">Chief Financial Officer</div>
</td>
</tr>
</table>

<div><br>
</div>

<div><br>
</div>

<div><br>
</div>

<div style="TEXT-ALIGN: left"><a name="doc_1_2"><!--Anchor--></a><a name="s5276890a3ef7d34d437943be242ade1"><!--Anchor--></a><br>
</div>
</body>
</html>
[{"type": "8-K", "sequence": "1", "filename": "form8k.htm", "description": "FORM 8-K", "secsgml_size_bytes": 36764}]
{"company-data": {"conformed-name": "Knight-Swift Transportation Holdings Inc.", "cik": "0001492691", "assigned-sic": "4213", "irs-number": "205589597", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-35007", "film-number": "18824041"}, "business-address": {"street1": "2200 SOUTH 75TH AVENUE", "city": "PHOENIX", "state": "AZ", "zip": "85043", "phone": "602-269-9700"}, "mail-address": {"street1": "2200 SOUTH 75TH AVENUE", "city": "PHOENIX", "state": "AZ", "zip": "85043"}, "former-company": [{"former-conformed-name": "SWIFT TRANSPORTATION Co", "date-changed": "20110512"}, {"former-conformed-name": "SWIFT TRANSPORTATION CO", "date-changed": "20101209"}, {"former-conformed-name": "SWIFT TRANSPORTATION Co", "date-changed": "20101129"}]}
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 10, 2018
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.)
20002 North 19th Avenue, Phoenix, Arizona
85027
(Address of principal executive offices)
(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))
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 8.01
OTHER EVENTS
On May 10, 2018, Knight-Swift Transportation Holdings Inc., a Delaware corporation (the "Company"), announced that its Board of Directors declared a quarterly cash dividend of $0.06 per share of common stock.  The dividend is payable to the Company's stockholders of record as of June 1, 2018, and is expected to be paid on June 27, 2018.
ITEM 9.01
FINANCIAL STATEMENTS AND EXHIBITS
(d) Exhibits
Exhibit
Description
Exhibit 99
Knight-Swift Transportation Holdings Inc. press release dated May 10, 2018, announcing quarterly cash dividend
The information contained in this Current Report, including the exhibit hereto, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the "Securities Act"), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.
The information in this report and the exhibit hereto may be considered forward-looking statements within the meaning of Section 27A of the Securities Act, and Section 21E of the Exchange Act, and such statements are subject to the safe harbor created by those sections and the Private Securities Litigation Reform Act of 1995, as amended. All statements, other than statements of historical or current fact, are statements that could be deemed forward-looking statements, including, without limitation, statements relating to our declaration of quarterly dividends. Forward-looking statements are based on the current beliefs, assumptions, and expectations of management and current market conditions. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, which could cause future events and actual results to differ materially from those set forth in, contemplated by, or underlying the forward-looking statements. There can be no assurance that future dividends will be declared. The declaration of future dividends is subject to approval of our Board of Directors and various risks and uncertainties, including, but not limited to: our cash flow and cash needs; compliance with applicable law; restriction on the payment of dividends under existing or future financing
arrangements; changes
in tax laws relating to corporate dividends; deterioration in our financial condition or results, and those risks, uncertainties, and other factors identified from time-to-time in our filings with the Securities and Exchange Commission. Please refer to the last paragraph of the press release and various disclosures by the Company in its press releases, stockholder reports, and filings with the Securities and Exchange Commission for information concerning risks, uncertainties, and other factors that may affect future results.
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.
Knight-Swift Transportation Holdings Inc.
(Registrant)
Date:
May 10, 2018
/s/ Adam W. Miller
Adam W. Miller
Chief Financial Officer