6-K

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 June 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 ☐

EXHIBIT INDEX

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.

Date: June 12, 2025

EX-99.1

Exhibit 99.1

I-Mab Regains Compliance with Nasdaq Minimum Bid Price Requirement

ROCKVILLE, MD, June 12, 2025 (GLOBE NEWSWIRE) -- I-Mab (NASDAQ: IMAB) (“I-Mab” or the “Company”), a U.S.-based, global biotech company, focused on the development of precision immuno-oncology agents for the treatment of cancer, today announced that on June 11, 2025 it received notification from The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that it had regained compliance with Nasdaq’s $1.00 minimum bid price requirement under Nasdaq Listing Rule 5550(a)(2) (the “Listing Rule”). The Company’s American Depositary Shares (“ADSs”) will continue to be listed and traded on Nasdaq.

To regain compliance with the Listing Rule, the Company’s ADSs were required to maintain a minimum closing bid price of $1.00 for at least 10 consecutive business days, which was achieved on June 10, 2025. Nasdaq has stated that this matter is now closed.

About I-Mab

I-Mab (NASDAQ: IMAB) is a U.S.-based, global biotech company, focused on the development of precision immuno-oncology agents for the treatment of cancer. The Company’s differentiated pipeline is led by givastomig, a potential best-in-class, bispecific antibody (Claudin 18.2 x 4-1BB) designed to treat Claudin 18.2-positive gastric cancers. Givastomig conditionally activates T cells via the 4-1BB signaling pathway in the tumor microenvironment where Claudin 18.2 is expressed. Givastomig is being developed for first-line metastatic gastric cancers, with further potential in other solid tumors. In Phase 1 trials, givastomig was observed to maintain a strong tumor-binding property and anti-tumor activity, attributable to a potential synergistic effect of proximal interaction with Claudin 18.2 and 4-1BB, while minimizing toxicities commonly seen with other 4-1BB agents.

For more information, please visit www.i-mabbiopharma.com and follow us on LinkedIn and X.

I-Mab Investor & Media Contacts

PJ Kelleher

LifeSci Advisors

+1-617-430-7579

pkelleher@lifesciadvisors.com

IR@imabbio.com