Pharma BD Deal Intelligence

IDEC Pharmaceuticals Corporation / Biogen Inc.

2003 · Acquisition/Merger · $6.5B · Complete

Announcement Sentiment

Positive

Definitive merger agreement announced June 23, 2003. Stock-for-stock ~$6.4-6.7B. Closed November 12, 2003 forming Biogen Idec. Largest biotech merger between independents at the time. Sources: CNN Money 6/23/2003, Biogen Idec 10-Q SEC filings.

Key facts

Announced Jun 23, 2003
Closed Nov 12, 2003
Deal value $6.5B
Deal type Acquisition/Merger

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