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): January 3, 2020 (January 2, 2020)

MUDRICK CAPITAL ACQUISITION CORPORATION

(Exact Name of Registrant as Specified in Charter)

Registrant’s telephone number, including area code: (646) 747-9500

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

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).

 Securities registered pursuant to Section 12(b) of the Act:

Emerging growth company  x

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 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

On January 2, 2020, Mudrick Capital Acquisition Corporation (the “Company”) issued an unsecured promissory note (the “Note”) in the amount of up to $1,500,000 to Mudrick Capital Acquisition Holdings LLC (the “Sponsor”). The Note bears no interest and is repayable in full upon consummation of the Company’s initial business combination. The note may also be converted into warrants at a price of $1.00 per warrant at the option of the Sponsor upon the consummation of the Company’s initial business combination. Such warrants would be identical to the private placement warrants issued to the Sponsor at the Company’s initial public offering.

The Note was issued pursuant to the exemption from registration contained in Section 4(a)(2) of the Securities Act of 1933, as amended.

A copy of the Note is attached as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference. The disclosure set forth in this Item 2.03 is intended to be a summary only and is qualified in its entirety by reference to the Note.

Item 9.01 Financial Statements and Exhibits

SIGNATURE

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.

Dated: January 3, 2020