Pharma BD Deal Intelligence

Pfizer Inc. / Biohaven Pharmaceutical Holding Company Ltd.

2022 · Acquisition/Merger · $11.6B · Complete

Pfizer's $11.6 billion cash acquisition of Biohaven bought its way into migraine with Nurtec ODT, a dual-action CGRP antagonist already approved for both acute treatment and prevention—plus zavegepant as a follow-on nasal-spray asset. The deal gave Pfizer an established, differentiated migraine franchise rather than a pipeline bet, with Biohaven spinning off its non-CGRP assets into a separate public entity before close.

CALLED IT — OFF BY 21
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Top 25 largest deals of the 2020s

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

The coverage arc

May 10, 2022 Fierce Pharma Neutral

Pfizer buys migraine partner Biohaven for $11.6B, betting on CGRP drugs in grand return to neuroscience. Pfizer expects to grow Biohaven's oral CGRP franchise…

May 10, 2022 MedCity News (William Blair) Bullish

William Blair analysts wrote the acquisition is a good deal for both Pfizer and Biohaven, viewing it as clear validation of Nurtec ODT's leadership position in…

Feb 03, 2026 Pfizer 2025 Annual Report Bullish

Nurtec ODT/Vydura full-year 2025 revenue of $1,424 million (2% of total revenue), confirming continued CGRP franchise growth under Pfizer ownership.

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Pfizer acquired Biohaven Pharmaceuticals for approximately $11.6 billion ($148.50 per share in cash), gaining Nurtec ODT (rimegepant), a dual-action CGRP receptor antagonist approved for both acute treatment and prevention of migraine. Prior to closing, Biohaven spun off its non-CGRP pipeline into a new public entity.

Key facts

Disease & market context

Migraine

39M US cases/yr · $9M 2024 migraine market

Disease Overview

Migraine is a common, disabling primary headache disorder characterized by recurrent attacks of moderate to severe, often unilateral and pulsating head pain, typically accompanied by nausea, vomiting, photophobia, or phonophobia, and in some patients preceded or accompanied by transient neurological aura. The Global Burden of Disease 2016 analysis, published in The Lancet Neurology, estimated that approximately 1.04 billion people worldwide live with migraine, and that migraine produced 45.1 million years lived with disability (YLDs) globally in 2016, carrying a much higher disability weight than tension-type headache. The burden is concentrated in working-age adults and falls disproportionately on women: among women aged 15 to 49 years, migraine produced 20.3 million YLDs, representing 11.2% of all years lived with disability in that age and sex group. Individual attacks can last hours to days and commonly impair the ability to work, study, drive, care for family, or function socially, and the chronic and episodic nature of the disease drives substantial lost productivity and reduced quality of life. The authors conclude that headache disorders, and migraine in particular, are important causes of disability worldwide and deserve greater attention in health policy debates and research resource allocation.

Competitive Landscape

CGRP-targeting therapies dominate: Nurtec ODT (rimegepant), Ubrelvy (ubrogepant), and monoclonal antibodies (Aimovig, Ajovy, Emgality, Vyepti). Dual acute/preventive labeling is a differentiating feature. Competition is intense with payer step-edits and rebating as key levers.

Deal timeline

Related deals — scored

DealYearValueOutcome
Pfizer Inc. / Biohaven Pharmaceutical Holding Company Ltd. (this deal)2022$11.6B69
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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