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Danaher to Acquire Masimo in $9.9 Billion Deal
The acquisition will expand Danaher's diagnostics market reach.
Published on Feb. 19, 2026
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Danaher Corporation, a Washington-based science and technology firm, plans to acquire Masimo Corporation, a leading specialty diagnostics company headquartered in Irvine, California, in a $9.9 billion deal. The transaction is expected to close in the second half of 2026, subject to Masimo shareholder approval.
Why it matters
The merger will strengthen Danaher's global patient diagnostics market presence, particularly in the area of pulse oximetry and other patient monitoring solutions. It will also provide Masimo with the opportunity to expand its reach and continue improving patient care, especially in acute care settings.
The details
Danaher will acquire all of Masimo's outstanding shares of common stock for $180 per share in cash. The deal prices Masimo at nearly 18 times its estimated 2027 earnings before interest, taxes, depreciation, and amortization. Danaher plans to fund the acquisition using cash on hand and proceeds from debt financing. Following the merger, Masimo will continue to operate as a stand-alone firm within Danaher's Diagnostics segment.
- The transaction is expected to close in the second half of 2026, subject to Masimo shareholder approval.
- Masimo will report its fourth-quarter and full-year 2025 results on February 26.
The players
Danaher Corporation
A Washington-based science and technology firm that uses advanced technology to provide more accurate diagnoses for patients worldwide. Danaher currently employs more than 60,000 people.
Masimo Corporation
A leading specialty diagnostics company headquartered in Irvine, California. Masimo's diagnostic products are used on more than 200 million patients internationally, and its pulse oximetry is utilized in top U.S. hospitals. The company currently has close to 3,600 employees.
Julie Sawyer Montgomery
Danaher Executive Vice President.
Katie Szyman
Masimo CEO.
What’s next
The transaction is expected to close in the second half of 2026, subject to Masimo shareholder approval.
The takeaway
This acquisition will strengthen Danaher's global patient diagnostics market presence, particularly in the area of pulse oximetry and other patient monitoring solutions, while providing Masimo with the resources to expand its reach and continue improving patient care.




