Boston Scientific inks $14.5B deal, boosting its Minnesota-dominated heart device portfolio

Boston Scientific has long used mergers and acquisitions to fuel growth. This deal appears to be its largest since its acquisition of Arden Hills pacemaker company Guidant in 2006 for $27B.

The Minnesota Star Tribune
January 15, 2026 at 4:57PM
Boston Scientific, which has a major Minnesota presence, plans to buy a California heart device company for $14.5 billion in cash and stock. (Renée Jones Schneider/The Minnesota Star Tribune)

Boston Scientific is purchasing heart-device company Penumbra for roughly $14.5 billion in cash and stock, marking the largest deal in two decades for the medtech company with a large Minnesota presence.

Penumbra, based in California, makes technology treating several blood-flow conditions such as stroke and pulmonary embolism. Boston Scientific’s cardiology division is primarily based in Minnesota.

Boston Scientific CEO Mike Mahoney said during a call with investors Jan. 15 he is confident the deal will bring value to patients and shareholders. He expects the acquisition to close by the second half of the year, pending regulatory approvals.

“Penumbra is a great company,” Mahoney said, “with a highly differentiated portfolio of novel technologies that operate in high-growth segments where Boston Scientific lacks offerings. ... Boston Scientific brings broad capabilities including supply-chain experience, expertise and a significant global commercial footprint.”

Boston Scientific has long used mergers and acquisitions to fuel growth. This deal appears to be the company’s largest since its troubled acquisition of Arden Hills pacemaker company Guidant in 2006 for $27 billion. The company recovered from debt and legal troubles associated with that deal to become one of the most profitable medtech companies in the world while maintaining a huge Minnesota operation.

Boston Scientific’s stock price was down more than 4% in early trading Thursday, while Penumbra shares had ballooned more than 10%.

J.P. Morgan analysts led by Robbie Marcus said in a note to investors that the acquisition makes “a good deal of sense” despite their expectation that it will draw “significant investor scrutiny” as it comes as a surprise.

The J.P. Morgan note said the deal gives Boston Scientific access to “best-in-class products” in fast-growing markets, cross-selling opportunities and the chance to globalize Penumbra’s predominately U.S.-based business.

Mahoney said Boston Scientific plans to operate Penumbra “essentially as a stand-alone organization” within its high-growth cardiovascular group. Boston Scientific’s Farapulse technology treating atrial fibrillation has led to explosive growth for this division in recent fiscal quarters.

Penumbra, founded in 2004, has 4,500 employees and products reaching more than 100 markets around the world.

The company based in Alameda, Calif., reported $354.7 million in revenue for the most recently reported quarter, representing growth of nearly 18%. Adjusted profit per share was 97 cents, up from 85 cents for the quarter reported a year prior.

Penumbra CEO Adam Elsesser will join Boston’s board of directors following the deal. The company’s stock price has trended upward in the past year.

“We share similar cultures within our company and feel strongly that combining these strengths will further accelerate growth,” Elsesser said.

about the writer

about the writer

Victor Stefanescu

Reporter

Victor Stefanescu covers medical technology startups and large companies such as Medtronic for the business section. He reports on new inventions, patients’ experiences with medical devices and the businesses behind med-tech in Minnesota.

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