Boston Scientific Acquires Penumbra, Expanding Neurovascular Portfolio – Merger Arbitrage Monday

Jan 19, 2026

∙ Paid

Penumbra, Inc. (PEN): $350.78

Market Cap: $13.74B

Deal Size: $14.5B

Boston Scientific (BSX) entered a merger agreement on January 15, 2026, to acquire medtech firm Penumbra in a deal valued at $14.5 billion to expand its presence in the treatment of blood clots and strokes.

The deal is Boston Scientific’s biggest acquisition in the past 20 years and the fir…

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