Pharma BD Deal Intelligence

Sanofi-Synthelabo SA / Aventis SA

2004 · Acquisition/Merger · $65.0B · Complete

Announcement Sentiment
50
Neutral / mixed
Outcome Score
80
Worked — the deal delivered on its rationale.

Sanofi-Synthelabo acquired Aventis for approximately EUR 55.2 billion ($65 billion) after an initial hostile bid of EUR 47.8 billion was rejected. The revised friendly offer comprised five Sanofi shares for each Aventis share plus EUR 120 in cash, creating the world's third-largest pharmaceutical company.

Key facts

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