Pharma BD Deal Intelligence

Pfizer Inc. / Wyeth

2009 · Acquisition/Merger · $68.0B · Complete

CALLED IT — OFF BY 14

Wyeth brought Prevnar, biologics platform, and $4B synergies but stock underperformed

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Top 5 largest deals of the 2000s

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

The coverage arc

Jan 26, 2009 PBS NewsHour Bullish

Pfizer Inc., announced Monday it is acquiring rival company Wyeth for about $68 billion, in the largest pharmaceutical sector takeover since 2000.

Oct 15, 2009 Pfizer Completion Press Release Bullish

Pfizer Inc today announced the completion of its acquisition of Wyeth, creating the world's premier biopharmaceutical company.

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Pfizer acquired Wyeth for approximately $68 billion in a cash-and-stock transaction, gaining a leading biologics portfolio including Prevnar and Enbrel, diversifying beyond small molecules into vaccines, biologics, and consumer health.

Did it work? Outcome assessment

Wyeth brought Prevnar, biologics platform, and $4B synergies but stock underperformed

Strategic verdict
Achieved Stated Rationale

Key facts

Related deals — scored

DealYearValueOutcome
Pfizer Inc. / Wyeth (this deal)2009$68.0B86
Pfizer Inc. / BioNTech SE2020$748M100
Pfizer Inc. / FoldRx Pharmaceuticals201099
Pfizer Inc. / Medivation Inc.2016$14.0B86
Pfizer Inc. / Warner-Lambert Company2000$90.0B83
Pfizer Inc. / Arvinas, Inc.2021$2.4B77
Pfizer Inc. / Seagen Inc.2023$43.0B77

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