Pharma BD Deal Intelligence

Astellas Pharma Inc. / OSI Pharmaceuticals

2010 · Acquisition/Merger · $4.0B · Complete

WRONG BY 31 POINTS
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The coverage arc

Mar 25, 2006 Wikipedia Neutral

Astellas acquired OSI Pharmaceuticals for $4B.

May 17, 2010 Drug Discovery News Bullish

Astellas finally lands OSI after a multi-month hostile pursuit; deal seen as essential for Astellas' stated strategy of becoming a global category leader in…

Dec 04, 2019 C&EN Neutral

Astellas Pharma finally secured OSI Pharmaceuticals with a $4 billion offer after initially launching an unsolicited bid, gaining Tarceva and a promising…

Source summaries from our enrichment pipeline; follow links for originals.

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Astellas agreed to acquire OSI Pharmaceuticals for $57.50/share cash, totaling ~$4.0B. Closed June 9, 2010, providing Astellas a U.S. oncology platform anchored by Tarceva.

Did it work? Outcome assessment

Strategic verdict
Partially Achieved
Financial impact
Neutral
Pipeline outcome
Mixed

Key facts

Related deals — scored

DealYearValueOutcome
Astellas Pharma Inc. / OSI Pharmaceuticals (this deal)2010$4.0B33
Astellas Pharma Inc. / Seagen Inc.2009$4.5B95
Astellas Pharma Inc. / Ganymed Pharmaceuticals2016$1.4B81
Astellas Pharma Inc. / Sangamo Therapeutics, Inc.2026$50M63
Astellas Pharma Inc. / Ogeda SA2017$850M59
Astellas Pharma Inc. / Ocata Therapeutics, Inc.2015$379M41
Astellas Pharma Inc. / Optimer Pharmaceuticals, Inc.2012$90M38

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