Pharma BD Deal Intelligence

Pfizer Inc. / Allergan plc

2015 · Acquisition/Merger · $160.0B · Terminated

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Top 5 largest deals of the 2010s

Ranks computed across 828 graded deals (Critic + Outcome Score both present).

The coverage arc

Nov 23, 2015 Fortune Neutral

Pfizer and Allergan confirmed Monday they will merge to form the worlds biggest drug company by sales, in a deal that is mostly, if not exclusively, about tax.…

Nov 24, 2015 Harvard Business Review Bearish

The tax inversion is merely a transfer of future revenues from the US Treasury to current Pfizer and Allergan shareholders, questioning whether genuine joint…

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Pfizer and Allergan agreed to merge in a $160 billion deal that would have created the world's largest pharmaceutical company. The deal was terminated in April 2016 after the US Treasury Department issued new rules targeting tax inversions.

Key facts

Related deals — scored

DealYearValueOutcome
Pfizer Inc. / Allergan plc (this deal)2015$160.0B29
Pfizer Inc. / BioNTech SE2020$748M100
Pfizer Inc. / FoldRx Pharmaceuticals201099
Pfizer Inc. / Medivation Inc.2016$14.0B86
Pfizer Inc. / Wyeth2009$68.0B86
Pfizer Inc. / Warner-Lambert Company2000$90.0B83
Pfizer Inc. / Arvinas, Inc.2021$2.4B77

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