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AbbVie to acquire HBM portfolio company ImmunoGen for USD 10.1 billion in cash


HBM Healthcare Investments today announced that its portfolio company ImmunoGen (NASDAQ: IMGN) will be acquired by AbbVie (NYSE: ABBV) for USD 10.1 billion in cash. The acquisition price of USD 31.26 per ImmunoGen share represents a premium of around 95 percent to the closing price on November 29, 2023.

HBM Healthcare Investments has invested USD 17.5 million in ImmunoGen since May 2023 and holds 1.26 million shares worth USD 39.3 million based on the takeover price. The investment was made through participation in a capital increase and further purchases in the market based on the positive phase 3 data from the MIRASOL study, which evaluated the safety and efficacy of ELAHERE® compared to chemotherapy in patients with folic acid receptor alpha (FRα)-positive platinum-resistant ovarian cancer.

The acquisition of ImmunoGen follows the successful, for HBM smaller M&A transactions of Prometheus Biosciences (acquired by Merck & Co. for USD 10.8 billion in April) and Chinook (acquired by Novartis for USD 3.2 billion in August) from HBM's portfolio of listed companies, and thus confirms the attractiveness of the segment of small and medium-sized biotechnology companies with compelling clinical data.

For further information, please contact Dr Andreas Wicki on +41 41 710 75 77, or at andreas.wicki@hbmhealthcare.com.