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July 12, 2026

America November 30, 2023 2 mins read

AbbieVie Buys ImmunoGen: A Groundbreaking $10.1 Billion Acquisition

America ı By Rochdi Rais

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AbbieVie Buys ImmunoGen

In a stunning pre-market announcement, AbbVie Inc. has declared its intention to acquire ImmunoGen Inc., a prominent player in cancer drug development, for a staggering $10.1 billion. This groundbreaking deal, poised to reshape the pharmaceutical landscape, has already caused ImmunoGen's stock to skyrocket by 80%.

The Deal Details: A Strategic Expansion

AbbVie's plan is to purchase all outstanding shares of ImmunoGen at $31.26 per share, a significant leap from ImmunoGen's closing price of $16.06 per share on Wednesday. The transaction, receiving the green light from both companies' boards, is anticipated to conclude by mid-2024, pending shareholder and regulatory approvals.

Accelerating Oncology Presence: The Elahere Factor

The acquisition is not just about growth; it's a strategic move to bolster AbbVie's position in the solid tumor domain. Central to this is Elahere, ImmunoGen's flagship therapy for ovarian cancer. This move signifies a major step for AbbVie in diversifying and strengthening its oncology pipeline.

A Vision for Cancer Care: Leaders Speak

AbbVie's Richard A. Gonzalez expressed the acquisition as a testament to their commitment to long-term growth and a diversified oncology portfolio. ImmunoGen's CEO, Mark Enyedy, mirrored this enthusiasm, noting that AbbVie's global reach and expertise would maximize Elahere's potential and expedite its expansion.

Financial Advisors: Guiding the Mega-Deal

J.P. Morgan Securities leads the financial advisory for AbbVie, with Morgan Stanley & Co. LLC also playing a key role. On ImmunoGen's side, Goldman Sachs & Co. and Lazard are providing financial counsel.

The Potential Impact: Transforming Oncology Treatment

Elahere's success in treating platinum-resistant ovarian cancer, known for its chemotherapy resistance, highlights the potential of ImmunoGen's oncology portfolio to drive AbbVie's long-term revenue growth in this sector.

Legal Expertise: Navigating the Acquisition

The legal landscape of this acquisition features a formidable lineup. AbbVie's representation by Wachtell Lipton includes experts in corporate, finance, litigation, and more, while additional counsel details for ImmunoGen's representation by Ropes & Gray remain undisclosed.

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Rochdi Rais

Rochdi Rais is the Fractional Head of Growth and financial and legal writer at USA Herald. He has been writing and editing financial, legal and U.S. news for years with over +4000 articles published during his career.

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