I-Mab (IMAB) furnishes Q2 2025 results and business update via Form 6-K

Rhea-AI Filing Summary

I-Mab submitted a Form 6-K as a foreign private issuer to furnish a press release covering its financial results for the three and six months ended June 30, 2025, and a business update. The press release is included as Exhibit 99.1 and provides details on the company’s second quarter 2025 performance.

The filing also states that the information in this Form 6-K, including Exhibit 99.1, is incorporated by reference into I-Mab’s existing registration statements on Form F-3 and multiple Form S-8 registrations, making the disclosed information part of those offering documents from the filing date.

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 August 2025

Commission File Number: 001-39173

I-MAB

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 ☐

EXPLANATORY NOTE

On August 20, 2025, I-Mab (the “Registrant”) issued a press release announcing financial results for the three and six months ended June 30, 2025, which is furnished herewith as Exhibit 99.1.

The information in this report on Form 6-K, including the information contained in exhibit 99.1 to this report on Form 6-K, shall be deemed to be incorporated by reference into the Registrant’s Registration Statements on Form F-3 (File No. 333-286954) and Form S-8 (File Nos. 333-239871, 333-265684, 333-256603, and 333-279842) and to be a part thereof from the date on which this report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release – I-Mab Reports Second Quarter 2025 Financial Results and Provides Business 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.

	I-MAB
	By	:	/s/ Joseph Skelton
	Name	:	Joseph Skelton
	Title	:	Chief Financial Officer

Date: August 20, 2025

FAQ

What did I-Mab (IMAB) file in this Form 6-K?

I-Mab filed a Form 6-K to furnish a press release as Exhibit 99.1 that reports its financial results for the three and six months ended June 30, 2025, and provides a business update.

Which period’s results does I-Mab’s attached press release cover?

The attached press release covers I-Mab’s financial results for the three and six months ended June 30, 2025, referred to as the second quarter 2025 results.

How does this Form 6-K affect I-Mab’s existing registration statements?

The information in this Form 6-K, including Exhibit 99.1, is incorporated by reference into I-Mab’s Registration Statement on Form F-3 (File No. 333-286954) and its Form S-8 registration statements (File Nos. 333-239871, 333-265684, 333-256603, and 333-279842).

What is Exhibit 99.1 to I-Mab’s Form 6-K?

Exhibit 99.1 is a press release titled “I-Mab Reports Second Quarter 2025 Financial Results and Provides Business Update,” which contains the detailed financial and operational information referenced in the Form 6-K.

Who signed the Form 6-K for I-Mab and in what capacity?

The Form 6-K was signed on behalf of I-Mab by Joseph Skelton, who is identified as the company’s Chief Financial Officer.

Does this Form 6-K indicate whether I-Mab is a foreign private issuer?

Yes. The document is a Form 6-K Report of Foreign Private Issuer, indicating that I-Mab is treated as a foreign private issuer for U.S. securities law purposes.