Sector News

Amgen to buy Horizon Therapeutics in year’s biggest biotech deal

December 17, 2022
Life sciences

Amgen on Monday said it has agreed to acquire Ireland-based drugmaker Horizon Therapeutics, outlasting rival suitors Sanofi and Johnson & Johnson in takeover negotiations that were first disclosed last month.

The deal values Horizon at $27.8 billion on a fully diluted basis. In dollar terms, it’s the largest in Amgen’s four-decade history, eclipsing a 2002 acquisition of Immunex that gave the California biotechnology company rights to Enbrel, its top-selling drug and for years one of the most lucrative pharmaceutical products.

While buying Horizon is not likely to give Amgen its next Enbrel, it does hand the company a portfolio of rare and immune disease drugs that are projected to bring in sales of $3.6 billion this year.

Enbrel will lose market exclusivity at the end of this decade and Amgen, like other pharmas facing looming patent cliffs, has turned to dealmaking to hunt for new products. In August, it spent $4 billion to acquire ChemoCentryx and its inflammatory disease drug Tavneos.

Per terms of the acquisition, Amgen will pay $116.50 per Horizon share, a roughly 20% premium to their closing price Friday and 48% higher than what they were worth before Horizon disclosed it was in deal talks. J&J dropped out of negotiations on Dec. 5 and on Sunday Sanofi said it had as well. READ MORE

by Ned Pagliarulo


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