I-Mab Announces Pricing of $65 Million Underwritten Offering of American Depositary Shares

ROCKVILLE, Md., Aug. 01, 2025 (GLOBE NEWSWIRE) — I-Mab (NASDAQ: IMAB) (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 the pricing of an underwritten offering in the United States of 33,333,334 American Depositary Shares (ADSs) representing 76,666,668 ordinary shares at an offering price of $1.95 per ADS, for total gross proceeds of approximately $65 million. All of the ADSs to be sold in the offering will be offered by I-Mab. The offering is expected to close on August 5, 2025, subject to customary closing conditions.

The offering included participation from new and existing investors including Everest Medicines, Janus Henderson Investors, Adage Capital Partners LP and Exome Asset Management.

Leerink Partners is acting as the lead bookrunning manager. BTIG is acting as a bookrunning manager. Lucid Capital Markets is acting as lead manager.

The Company intends to use the net proceeds from the offering, together with its existing cash and cash equivalents, to fund ongoing clinical development of its pipeline product candidates, including a randomized Phase 2 trial of givastomig, a bispecific Claudin 18.2 x 4-1BB antibody, intended to have sufficient power and size to generate clinically meaningful progression-free survival (PFS) data by end of 2027, and for working capital and other general corporate purposes.

The ADSs are being offered pursuant to an effective F-3 shelf registration statement that was previously filed with the Securities and Exchange Commission (the SEC). A prospectus supplement will be filed with the SEC and will be available on the SEC’s website at www.sec.gov. The offering will be made only by means of a written prospectus and prospectus supplement that form a part of the registration statement. Copies of the prospectus supplement and the accompanying prospectus relating to the offering may be obtained, when available, for free from Leerink Partners LLC, Attention: Syndicate Department, 53 State Street, 40th Floor, Boston, Massachusetts 02109, by telephone at (800) 808-7525, ext. 6105, or by email at syndicate@leerink.com.

This press release shall not constitute an offer to sell, or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

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 additional potential in other solid tumors. In ongoing Phase 1 trials, givastomig has been observed to maintain strong tumor-binding 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.

【Editor’s note】The above info is cited from I-Mab Biopharma website. Please visit it for detailed information released on 2025-08-01. Many thanks!