NovaBridge (IMAB) assigns AskGene license to Everest; appoints Woo

NovaBridge Biosciences (IMAB) reported two updates.

Rhea-AI Filing Summary

NovaBridge Biosciences (IMAB) reported two updates. Its subsidiary Visara signed an Assignment and Assumption Agreement with Everest Medicines (Singapore) Pte. Ltd., under which Everest will assume all rights and obligations Visara holds under the Exclusive License Agreement dated October 15, 2025 with AskGene Pharma, Inc.

The Board appointed Ian Ying Woo as an independent director, effective October 15, 2025, and named him to the Nominating and Corporate Governance Committee. Mr. Woo is President, Chief Financial Officer and Director of Everest Medicines Limited and will receive standard cash retainers and equity grants under the Company’s Non-Executive Director Compensation Policy. A press release (Exhibit 99.1) notes the assignment relates to VIS-101 in Greater China and certain other Asian countries. This report is incorporated by reference into the Company’s Form F-3 and Form S-8 registration statements.

FAQ

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What did NovaBridge (IMAB) announce in this 6-K?

Visara agreed to assign to Everest Medicines (Singapore) Pte. Ltd. all rights and obligations under an Exclusive License Agreement dated October 15, 2025 with AskGene Pharma, Inc., and Ian Ying Woo was appointed as an independent director.

Who is the new independent director at NovaBridge (IMAB)?

Mr. Ian Ying Woo, effective October 15, 2025. He also joins the Nominating and Corporate Governance Committee.

What are Ian Ying Woo’s current roles outside NovaBridge?

He is President, Chief Financial Officer and Director of Everest Medicines Limited and an operating partner of CBC Group.

What compensation will the new director receive?

He will receive applicable cash retainer fees and initial and annual equity grants under the Non-Executive Director Compensation Policy.

Which agreement is being assigned and to whom?

The Exclusive License Agreement dated October 15, 2025 between Visara and AskGene Pharma, Inc. is being assigned to Everest Medicines (Singapore) Pte. Ltd.

What does Exhibit 99.1 cover?

A press release stating Visara assigned its exclusive license to Everest for VIS-101 in Greater China and certain other Asian countries.

Is this 6-K incorporated into NovaBridge’s registration statements?

Yes. It is incorporated by reference into Form F-3 (File No. 333-286954) and multiple Form S-8 filings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 10/29/2025 - 07:00 PM Learn about SEC filing dates

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 October 2025

Commission File Number: 001-39173

NovaBridge Biosciences

2440 Research Boulevard, Suite 400

Rockville, MD 20850

(Address of principal executive offices)

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 ☐

Assignment and Assumption Agreement between Visara, Inc, ("Visara") and Everest Medicines (Singapore) Pte. Ltd., ("Everest")

On October 28, 2025, Visara, a subsidiary of NovaBridge Biosciences, f/k/a I-MAB, (“NovaBridge” or the “Company”) entered into an Assignment and Assumption Agreement (the "Assignment and Assumption Agreement") with Everest pursuant to which Visara has agreed to assign, and Everest has agreed to assume, all of the rights and obligations of Visara under the Exclusive License Agreement, dated October 15, 2025 between Visara and AskGene Pharma, Inc. ("AskGene").

Directorate Change

On October 15, 2025, the board of directors (the “Board”) of NovaBridge Biosciences, f/k/a I-MAB, (“NovaBridge” or the “Company”) appointed Mr. Ian Ying Woo as independent members of the Board, effective immediately. Mr. Woo has also been appointed as a member of the Nominating and Corporate Governance Committee of the Board.

Mr. Woo is President, Chief Financial Officer and Director of Everest Medicines Limited (HKEX: 1952). and also serves as an operating partner of CBC Group. He has recently served as an independent director and chairman of the audit committee of Prenetics Global Limited (Nasdaq: PRE). From 2018 to 2019, Mr. Woo served as Managing Director of CBC Group. Prior to that,from 2005 to 2018, Mr. Woo was a Managing Director in the global healthcare group of Lazard Frères & Co. LLC, working in the New York and Hong Kong offices. Mr. Woo earned his Master of Business Administration from the Columbia University Graduate School of Business, his Master of Arts in Cellular, Molecular and Biomedical studies from the Columbia University Graduate School of Arts and Sciences, and his Bachelor of Science in Biology from Tufts University.

Mr. Woo will be entitled to applicable cash retainer fees and an initial and annual equity grant pursuant to the Company’s Non-Executive Director Compensation Policy. Mr. Woo has entered into the Company’s standard form of indemnification agreement, the form of which is filed as Exhibit 10.3 to the Company’s Registration Statement on Form F-1 (File No. 333-234363), as amended, initially filed with the SEC on October 29, 2019. There are no arrangements or understandings between Mr. Woo and any other persons pursuant to which they were appointed as directors.

A copy of the press release is attached hereto as Exhibit 99.1.

Incorporation by Reference

A copy of the full text of the press release referenced above is filed as Exhibit 99.1 hereto and is incorporated herein by reference. The information set forth in this Report on Form 6-K shall be deemed to be incorporated by reference into the Company’s Registration Statements on Form F-3 (File No. 333-286954) and Form S-8 (File No. 333-239871, File No. 333-256603, File No. 333-265684, File No. 333-279842 and File No. 333-290195) (including any prospectuses forming a part of such registration statements) and to be a part thereof from the date on which this Form 6-K is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release - NovaBridge Subsidiary Visara Assigns Its Exclusive License to Everest Medicines for VIS-101 in Greater China and Certain Other Asian Countries

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.

	NovaBridge Biosciences
	By	:	/s/ Xi-Yong Fu
	Name	:	Xi-Yong (Sean) Fu
	Title	:	Chief Executive Officer

Date: October 29, 2025