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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the Month of April 2023

Commission File Number: 001-39431

Freeline Therapeutics Holdings plc

(Translation of registrant’s name into English)

Sycamore House

Gunnels Wood Road

Stevenage, Hertfordshire SG1 2BP

United Kingdom

(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 ☐ Form 40-F

Freeline Reports Full Year 2022 Financial Results and Provides Corporate Update

On April 4, 2023, Freeline Therapeutics Holdings plc (“Freeline” or the “Company”) issued a press release, a copy of which is furnished as Exhibit 99.1 to this Report on Form 6-K, reporting its financial results for the full year 2022 and providing a corporate update.

The information contained in this “Freeline Reports Full Year 2022 Financial Results and Provides Corporate Update” section of this Report on Form 6-K and the press release furnished as Exhibit 99.1 shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is not incorporated by reference into any of the Company’s filings under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, except as shall be expressly set forth by specific reference in any such filing.

EXHIBIT LIST

Exhibit	Description
99.1	Press Release dated April 4, 2023, “Freeline Reports Full Year 2022 Financial Results and Provides Corporate Update”

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.

	FREELINE THERAPEUTICS HOLDINGS PLC
Date: April 4, 2023	By:	/s/ Paul Schneider
	Name	Paul Schneider
	Title:	Chief Financial Officer