Pfizer-Allergan Merger Scrapped

A move by the US federal government to close tax loopholes that encourage “tax inversions” likely spooked the companies out of the multibillion dollar deal.

Written byBob Grant
| 2 min read

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WIKIMEDIA, REVISORWEBPharmaceutical giant Pfizer and Ireland-based Allergan are scuttling their $152 billion merger, both companies announced today (April 6). The news comes just a couple of days after the US Department of Treasury unveiled sweeping new tax rules designed to make it harder for American companies to shift their headquarters to foreign countries in order to avoid paying US corporate taxes—a tactic known as “tax inversion.” Pfizer would have saved millions on its tax bill if it were to reincorporate in Ireland, as was expected after the merger.

“While we are disappointed that the Pfizer transaction will no longer move forward, Allergan is poised to deliver strong, sustainable growth built on a set of powerful attributes,” said Allergan CEO and President Brent Saunders in a statement.

“The decision was driven by the actions announced by the U.S. Department of Treasury on April 4, 2016,” Pfizer said in a statement.

The massive merger, which was originally announced last November, immediately attracted the attention of federal regulators. But few observers expected the federal government to enact laws that would obliterate the tax benefits of the deal. Yet that’s exactly what the Treasury Department set out to do, according to Saunders. “It really looked like they did a very fine job of constructing a rule here—a ...

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  • From 2017 to 2022, Bob Grant was Editor in Chief of The Scientist, where he started in 2007 as a Staff Writer. Before joining the team, he worked as a reporter at Audubon and earned a master’s degree in science journalism from New York University. In his previous life, he pursued a career in science, getting a bachelor’s degree in wildlife biology from Montana State University and a master’s degree in marine biology from the College of Charleston in South Carolina. Bob edited Reading Frames and other sections of the magazine.

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