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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): November 29, 2021

SIGILON THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-39746

47-4005543

(State or other jurisdiction

(Commission

(IRS Employer

of incorporation)

File Number)

Identification No.)

100 Binney Street, Suite 600, Cambridge, MA

02142

(Address of principal executive offices)

(Zip Code)

(Registrant’s telephone number, including area code): (617) 336-7540

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):

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))

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

Trading

Name of each exchange

Title of each class

    

Symbol(s)

    

on which registered

Common Stock, $0.001 par value per share

SGTX

The Nasdaq Global Select Market

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 November 29, 2021, Sigilon Therapeutics, Inc. (the “Company”) provided an update on the Company’s Phase 1/2 clinical trial of SIG-001 in hemophilia A, which is on clinical hold. The Company issued a press release reporting that fibrosed spheres were observed during a retrieval procedure in a patient dosed in the study, which is filed as Exhibit 99.1 to this Current Report on Form 8-K, and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit

No.

Description

99.1

Press Release Issued by Sigilon Therapeutics, Inc. on November 29, 2021

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

SIGILON THERAPEUTICS, INC.

By:

/s/ Rogerio Vivaldi Coelho, M.D.

Rogerio Vivaldi Coelho, M.D.

President and Chief Executive Officer

Date: November 29, 2021