1

The amount to be registered under the Knight-Swift Transportation Holdings Inc. Second Amended and Restated 2014 Omnibus Incentive Plan (the "Second Amended and Restated Omnibus Plan") increases the number of shares of common stock available for issuance under the Knight-Swift Transportation Holdings Inc. Amended and Restated 2014 Omnibus Incentive Plan (the "Former Omnibus Plan") by an additional 4,750,000 shares. As of May 14, 2020, there were approximately 1,830,767 previously-registered shares that remained available for issuance under the Former Omnibus Plan. Therefore, the Second Amended and Restated Omnibus Plan results in approximately 6,580,767 shares being available for future awards, subject to certain adjustments.

2	Estimated solely for purposes of calculating the registration fee pursuant to Rules 457(c) and 457(h)(1) based upon the average of the high and low prices of the common stock on the New York Stock Exchange on May 14, 2020.

---

*

The documents containing the information specified in Parts I and II of this Form S-8 will be delivered to each employee who is eligible to participate in the Second Amended and Restated Omnibus Plan in accordance with Rule 428(b)(1) under the Securities Act of 1933, as amended (the "Securities Act"). These documents are not being filed with the Securities and Exchange Commission (the "SEC") either as part of this registration statement or as prospectuses or prospectus supplements pursuant to Rule 424 under the Securities Act. These documents and the documents incorporated by reference into this registration statement pursuant to Item 3 of Part II of this Form S-8, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.

(a)	The Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2019.

(b)	The Company's Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2020.

(c)	The Company's Current Reports on Form 8-K filed on January 29, 2020, February 7, 2020, April 13, 2020, April 22, 2020, and May 7, 2020.

(d)

The description of the Company's common stock, $0.01 par value is contained in Exhibit 4.1 ("Description of the Registrant's Securities") in the Company's Form 10-K for the year ended December 31, 2019, which updated the description of the Company's common stock filed on Form 8-A with the SEC on December 13, 2010 (Reg. No. 001-35007), including any amendments or reports filed for the purpose of updating such information.

---

•

to the extent a present or former director or officer of a corporation has been successful on the merits or otherwise in defense of any action, suit or proceeding referred to in subsections (a) and (b) of Section 145, or in the defense of any claim, issue or matter therein, such person shall be indemnified against expenses (including attorneys’ fees) actually and reasonably incurred by such person in connection therewith;

•

the indemnification and advancement of expenses provided for pursuant to Section 145 shall not be deemed exclusive of any other rights to which those seeking indemnification or advancement of expenses may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors or otherwise both as to action in such person’s official capacity and as to action in another capacity while holding such office. A right to indemnification or to advancement of expenses arising under a provision of the certificate of incorporation or a bylaw shall not be eliminated or impaired by an amendment to the certificate of incorporation or the by-laws after the occurrence of the act or omission that is the subject of the civil, criminal, administrative or investigative action, suit or proceeding for which indemnification or advancement of expenses is sought, unless the provision in effect at the time of such act or omission explicitly authorizes such elimination or impairment after such action or omission has occurred;

•

the corporation shall have the power to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any liability asserted against such person and incurred by such person in any such capacity, or arising out of such person’s status as such, whether or not the corporation would have the power to indemnify such person against such liability under Section 145 of the DGCL; and

•	The indemnification and advancement of expenses provided by, or granted pursuant to, Section 145 of the DGCL shall, unless otherwise provided when authorized or ratified, continue as to a person who has ceased to be a director, officer, employee or agent and shall inure to the benefit of the heirs, executors and administrators of such a person.

---

---

(1)	To file, during any period in which offers of sales are being made, a post-effective amendment to this registration statement:

(i)	To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;

(ii)

To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20 percent change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement.

(iii)	To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

(2)	That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(3)	To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

(4)

That, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(5)

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

---