UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

For the month of: May 2018 (Report No. 1)

Commission File Number 001-35932

ARCTURUS THERAPEUTICS LTD.

(Translation of Registrant’s name into English)

10628 Science Center Drive, Suite 200

San Diego, California 92121

(Address of Principal Executive Office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

On May 14, 2018, Arcturus Therapeutics Ltd. (the “Company”) announced the filing (on May 14, 2018) of the Company’s Annual Report on Form 20-F for the fiscal year ended December 31, 2017 with the U.S. Securities and Exchange Commission. The press release is attached hereto as Exhibit 99.1.

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, thereunto duly authorized.

	ARCTURUS THERAPEUTICS LTD.
Date: May 14, 2018	By:	/s/ Mark Herbert
	Name:	Mark Herbert
	Title:	Interim President

Exhibit Index

Exhibit No.	Description
99.1	Press Release issued by the Company on May 14, 2018, titled “Arcturus Therapeutics Files Form 20-F.”