Stay up to date with notifications from The Independent

Notifications can be managed in browser preferences.

Amgen to buy Horizon Therapeutics in $26.4B deal

Amgen will acquire Horizon Therapeutics, a biopharmaceutical company that focuses on treatments for rare, autoimmune diseases, for about $26.4 billion

Tom Murphy
Monday 12 December 2022 07:00 EST
Amgen Horizon
Amgen Horizon (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

Amgen will acquire Horizon Therapeutics, a biopharmaceutical company that focuses on treatments for rare, autoimmune diseases, for about $26.4 billion.

Each Horizon shareholder will receive $116.50 per share for each share they own. The deal has an enterprise value of about $28.3 billion, Amgen said.

Shares of Horizon jumped nearly 14% before the opening bell Monday.

U.S.-traded shares of Horizon soared about 30%, past $100, after the company confirmed late last month that it had begun “highly preliminary discussions” about an acquisition with Amgen, the French drugmaker Sanofi, and Johnson & Johnson’s Janssen division.

Amgen confirmed discussions were taking place in early this month and said at the time that any offer it made for Horizon likely would be in cash, but also that there was no guarantee an offer would be made.

A day later, Johnson & Johnson said that it did not intend to make an offer.

Amgen said Monday that the Horizon transaction will give it access to a complementary portfolio of medicines from Horizon that address the needs of patients suffering from rare diseases.

Horizon Therapeutics PLC, based in Dublin, develops potential treatments for rare, autoimmune and severe inflammatory diseases. Its best-seller, Tepezza, is only approved in the United States and treats eye bulging and double vision from thyroid eye disease.

U.S. regulators approved Tepezza in early 2020 as the first treatment for thyroid eye disease. The drug’s sales more than doubled last year to $1.67 billion. That’s about half of the company’s total sales of $3.23 billion.

The FDA gave Tepezza “orphan drug” status, which comes with financial incentives and exclusive marketing, benefits that are intended to encourage drugmakers to develop rare disease treatments.

Horizon also makes Krystexxa for uncontrolled gout. Sales of that treatment grew 39% last year to $565.5 million.

Shares of Amgen Inc., based northwest of Los Angeles in Thousand Oaks, California, fell nearly 3% in premarket trading.

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in