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Penumbra Heats Up as M&A Rumors Swirl– Is a $12B Buyout Coming?

Penumbra shares climbed approximately 3.8% on January 14, 2026, amid swirling takeover speculation that sparked renewed investor interest. The move came as traders reacted to an “uncooked” alert issued by Betaville, a UK-based M&A rumor source, suggesting Penumbra may be the subject of acquisition interest. Though no specific suitor was identified, the rumor mill was active, and speculative activity elevated trading volumes. Penumbra, a medical device company with a market capitalization of approximately $11.8 billion, specializes in advanced thrombectomy and embolization solutions, particularly its proprietary CAT (Computer-Assisted Thrombectomy) technology for treating venous and arterial clot formations. Despite lacking confirmation from any strategic or financial bidder, market participants viewed the alert as credible enough to justify a modest re-rating. In light of Penumbra’s improving fundamentals, new product launches, positive trial data (especially from STORM-PE), and an enviable balance sheet with no debt, speculation around a potential acquisition has intensified.