UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

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

THE SECURITIES EXCHANGE ACT OF 1934

For the month of December 2025

Commission File Number: 001-41359

Belite Bio, Inc

(Exact name of registrant as specified in its charter)

Not Applicable

(Translation of Registrant´s name into English)

12750 High Bluff Drive Suite 475,

San Diego, CA 92130

(Address of principal executive office)

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

Form 20-F x  Form 40-F ¨

On December 1, 2025, Belite Bio, Inc (the “Company”) issued a press release announcing that it has commenced an underwritten offering of American Depositary Shares (“ADSs”), each representing one of its ordinary shares, par value $0.0001 per share, pursuant to the Company’s automatic shelf registration statement on Form F-3 (File No. 333-284521), which became effective automatically on January 27, 2025, as supplemented by a preliminary prospectus supplement dated December 1, 2025.

The offering is subject to market conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering. A copy of the press release is furnished as Exhibit 99.1.

This Current Report on Form 6-K shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities described above in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

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, thereunto duly authorized.

Date: December 1, 2025