Merck to Acquire Imago BioSciences, Inc.

Acquisition expands Merck’s growing hematology portfolio

On Nov 21, 2022

Rahway-based Merck and San Francisco-based Imago BioSciences, Inc. have entered into a definitive agreement under which Merck, through a subsidiary, will acquire Imago for approximately $1.35 billion.

“We continue to invest in our pipeline with a focus on applying our unique capabilities to unlock the value of breakthrough science for the patients we serve,” said Robert M. Davis, president and chief executive officer, Merck. “This acquisition of Imago augments our pipeline and strengthens our presence in the growing field of hematology.”

Imago is a clinical stage biopharmaceutical company developing new medicines for the treatment of myeloproliferative neoplasms (MPNs) and other bone marrow diseases. Imago’s lead candidate bomedemstat (IMG-7289), an investigational orally available lysine-specific demethylase 1 (LSD1) inhibitor, is currently being evaluated in multiple Phase 2 clinical trials for the treatment of essential thrombocythemia (ET), myelofibrosis (MF), and polycythemia vera (PV), in addition to other indications.

“This milestone is a testament to more than a decade of pioneering research by Imago scientists and the entire Imago team’s unwavering dedication to improving the lives of patients,” said Dr. Hugh Y. Rienhoff Jr., founder and chief executive officer, Imago BioSciences. “This agreement leverages Merck’s industry-leading clinical development expertise to maximize the therapeutic potential of bomedemstat while providing important value for shareholders. I would also like to acknowledge with gratitude the early investors – Blackstone Life Sciences, Frazier Healthcare, Omega Funds, Amgen Ventures, and MRL Ventures Fund who placed their faith in Imago beginning in 2014, as well as the outstanding study investigators and their patients who have made the clinical development of bomedemstat possible.”

“Evidence indicates that LSD1 plays an important role in the maturation of blood cells in the bone marrow,” said Dr. Dean Y. Li, president, Merck Research Laboratories. “We look forward to working with the Imago team to further investigate the potential of bomedemstat for patients with myeloproliferative neoplasms.”

Under the terms of the acquisition agreement, Merck, through a subsidiary, will initiate a tender offer to acquire all outstanding shares of Imago. Upon the successful completion of the tender offer, Merck’s acquisition subsidiary will be merged into Imago, and any remaining shares of common stock of Imago will be canceled and converted into the right to receive the same $36 per share price payable in the tender offer. The transaction is expected to close in the first quarter of 2023.

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